Macaca noun macaques; rhesus monkeys macadam



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rhinocerotidae - noun rhinoceroses

  • rhinolaryngology - noun the medical specialty that deals with diseases of the ear, nose and throat

  • rhinolophidae - noun Old World leaf-nosed bats

  • rhinophyma - noun enlargement of the nose with dilation of follicles and redness and prominent vascularity of the skin; often associated with excessive consumption of alcohol

  • rhinoplasty - noun cosmetic surgery to improve the appearance of your nose

  • rhinoptera - noun a genus of Myliobatidae

  • rhinorrhea - noun persistent watery mucus discharge from the nose (as in the common cold)

  • rhinoscope - noun medical instrument consisting of a mirror mounted at an angle on a rod; used to examine the nasal passages (through the nasopharynx)

  • rhinoscopy - noun examination of the nasal passages (either through the anterior nares or with a rhinoscope through the nasopharynx)

  • rhinosporidiosis - noun fungal infection of the nose; often acquired while swimming

  • rhipsalis - noun large genus of epiphytic or lithophytic unarmed cacti with usually segmented stems and pendulous branches; flowers are small followed by berrylike fruits

  • rhiptoglossa - noun Old World chameleons; in some classifications they are considered a superfamily of Sauria

  • rhizobium - noun the type genus of Rhizobiaceae; usually occur in the root nodules of legumes; can fix atmospheric oxygen

  • rhizoid - noun any of various slender filaments that function as roots in mosses and ferns and fungi etc

  • rhizoidal - adj. of or relating to a rhizoid

  • rhizomatous - adj. producing or possessing or resembling rhizomes

  • rhizome - noun a horizontal plant stem with shoots above and roots below serving as a reproductive structure

  • rhizomorph - noun a dense mass of hyphae forming a rootlike structure characteristic of many fungi

  • rhizophora - noun type genus of the Rhizophoraceae; a small genus of tropical trees and shrubs

  • rhizophoraceae - noun trees and shrubs that usually form dense jungles along tropical seacoasts

  • rhizopod - noun protozoa characterized by a pseudopod

  • rhizopoda - noun creeping protozoans: amoebas and foraminifers

  • rhizopodan - noun protozoa characterized by a pseudopod

  • rhizopogon - noun a genus of fungi having subterranean sporophores resembling tubers

  • rhizopus - noun any of various rot causing fungi of the genus Rhizopus

  • rhizotomy - noun surgical procedure in which spinal nerve roots are cut; done (anterior roots) to relieve intractable pain or (posterior roots) to stop severe muscle spasms

  • rhodanthe - noun Australian annual everlasting having light pink nodding flower heads; sometimes placed in genus Helipterum

  • rhodesian - adj. of or relating to the former country of Rhodesia (now Zimbabwe)

  • rhodochrosite - noun a mineral consisting of manganese carbonate; a source of manganese

  • rhodophyceae - noun coextensive with the Rhodophyta: red algae

  • rhodophyta - noun lower plants; mostly marine and littoral eukaryotic algae

  • rhodopsin - noun a red photopigment in the retinal rods of vertebrates; dissociates into retinene by light

  • rhodymenia - noun type genus of the family Rhodymeniaceae

  • rhodymeniaceae - noun a family of protoctist

  • rhoeadales - noun an order of dicotyledonous plants

  • rhomb - noun a parallelogram with four equal sides; an oblique-angled equilateral parallelogram

  • rhombencephalon - noun the posterior portion of the brain including cerebellum and brainstem

  • rhombohedron - noun a parallelepiped bounded by six similar faces (either rhombuses or parallelograms)

  • rhomboid - adj. shaped like a rhombus or rhomboid; noun any of several muscles of the upper back that help move the shoulder blade; a parallelogram with adjacent sides of unequal lengths; an oblique-angled parallelogram with only the opposite sides equal

  • rhomboidal - adj. shaped like a rhombus or rhomboid

  • rhonchus - noun a sound like whistling or snoring that is heard with a stethoscope during expiration as air passes through obstructed channels

  • rhumb - noun a line on a sphere that cuts all meridians at the same angle; the path taken by a ship or plane that maintains a constant compass direction

  • rhumba - noun a ballroom dance based on the Cuban folk dance; a folk dance in duple time that originated in Cuba with Spanish and African elements; features complex footwork and violent movement; syncopated music in duple time for dancing the rumba; verb dance the rhumba

  • rhus - noun deciduous or evergreen shrubs and shrubby trees of temperate and subtropical North America, South Africa, eastern Asia and northeastern Australia; usually limited to nonpoisonous sumacs (see genus Toxicodendron)

  • rhymeless - adj. not having rhyme

  • rhymer - noun a writer who composes rhymes; a maker of poor verses (usually used as terms of contempt for minor or inferior poets)

  • rhymester - noun a writer who composes rhymes; a maker of poor verses (usually used as terms of contempt for minor or inferior poets)

  • rhynchocephalia - noun tuataras; extinct forms from middle Triassic

  • rhynia - noun type genus of the Rhyniaceae; small leafless dichotomously branching fossil plants with terminal sporangia and smooth branching rhizomes

  • rhyniaceae - noun primitive plants of the Paleozoic

  • rhyolite - noun very acid volcanic rock

  • rhythmical - adj. recurring with measured regularity

  • rhythmically - adv. in a rhythmic manner

  • rhythmicity - noun the rhythmic property imparted by the accents and relative durations of notes in a piece of music

  • rial - noun the basic unit of money in Iran; the basic unit of money in Oman; the basic unit of money in Yemen; equal to 100 fils

  • riant - adj. showing or feeling mirth or pleasure or happiness

  • riata - noun a long noosed rope used to catch animals

  • ribaldry - noun ribald humor; behavior or language bordering on indelicacy

  • riband - noun a ribbon used as a decoration

  • ribband - noun a ribbon used as a decoration

  • ribbed - adj. furnished or strengthened with ribs; (of the surface) having a rough, riblike texture

  • ribbing - noun a framework of ribs; the act of harassing someone playfully or maliciously (especially by ridicule); provoking someone with persistent annoyances

  • ribbonfish - noun marine fish having a long compressed ribbonlike body; thin deep-water tropical fish 20 to 30 feet long having a red dorsal fin

  • ribbonlike - adj. long and thin; resembling a ribbon

  • ribbonwood - noun small tree or shrub of New Zealand having a profusion of axillary clusters of honey-scented paper-white flowers and whose bark is used for cordage; deciduous New Zealand tree whose inner bark yields a strong fiber that resembles flax and is called New Zealand cotton

  • ribbony - adj. long and thin; resembling a ribbon

  • ribes - noun a flowering shrub bearing currants or gooseberries; native to northern hemisphere

  • ribhus - noun one of three artisans of the gods

  • ribless - adj. having no ribs or no visible ribs

  • riblike - adj. resembling a rib

  • ribonuclease - noun a transferase that catalyzes the hydrolysis of ribonucleic acid

  • ribwort - noun an Old World plantain with long narrow ribbed leaves widely established in temperate regions

  • ricebird - noun small finch-like Indonesian weaverbird that frequents rice fields; migratory American songbird

  • ricer - noun a kitchen utensil used for ricing soft foods by extruding them through small holes

  • riches - noun an abundance of material possessions and resources

  • richly - adv. in a rich and lavish manner; in a rich manner; to an ample degree or in an ample manner

  • richmondena - noun cardinals

  • richness - noun a strong deep vividness of hue; the property of producing abundantly and sustaining vigorous and luxuriant growth; the quality of having high intrinsic value; splendid or imposing in size or appearance; the property of a sensation that is rich and pleasing; the property of being extremely abundant; abundant wealth

  • richweed - noun a plants of the genus Pilea having drooping green flower clusters and smooth translucent stems and leaves; erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers; the eastern United States

  • ricin - noun a toxic protein extracted from castor beans; used as a chemical reagent; can be used as a bioweapon

  • ricinus - noun a genus of herb having only one known species: castor-oil plant

  • ricketiness - noun the quality of not being steady or securely fixed in place

  • rickettsial - adj. relating to or caused by rickettsias

  • rickettsiales - noun pleomorphic Gram-negative microorganisms

  • rickettsialpox - noun mild infectious rickettsial disease caused by a bacterium of the genus Rickettsia transmitted to humans by the bite a mite that lives on rodents; characterized by chills and fever and headache and skin lesions that resemble chickenpox

  • rickey - noun a mixed drink made of sweetened lime juice and soda water usually with liquor

  • rickrack - noun a narrow zigzag ribbon used as trimming

  • ricksha - noun a small two-wheeled cart for one passenger; pulled by one person

  • ricrac - noun a narrow zigzag ribbon used as trimming

  • rictus - noun a gaping grimace

  • rider - noun a clause that is appended to a legislative bill; a traveler who actively rides an animal (as a horse or camel); a traveler who actively rides a vehicle (as a bicycle or motorcycle); a traveler riding in a vehicle (a boat or bus or car or plane or train etc) who is not operating it

  • ridged - adj. having a ridge or shaped like a ridge or the keel of a ship

  • ridgel - noun a colt with undescended testicles

  • ridgeling - noun a colt with undescended testicles

  • ridgil - noun a colt with undescended testicles

  • ridgling - noun a colt with undescended testicles

  • ridiculer - noun a humorist who uses ridicule and irony and sarcasm

  • ridiculously - adv. so as to arouse or deserve laughter

  • ridiculousness - noun a message whose content is at variance with reason

  • riding - adj. traveling by wheeled vehicle such as bicycle or automobile e.g.; noun to be carried on horseback as a means of transportation; the sport of siting on the back of a horse while controlling its movements

  • riel - noun the basic unit of money in Cambodia; equal to 100 sen

  • riesling - noun fragrant dry or sweet white wine from the Rhine valley or a similar wine from California; white grape grown in Europe and California

  • rife - adj. excessively abundant; encountered generally especially at the present time

  • riff - noun a jazz ostinato; usually provides a background for a solo improvisation; a Berber living in northern Morocco; verb play riffs; look through a book or other written material

  • riffian - noun a Berber living in northern Morocco

  • riffraff - noun disparaging terms for the common people

  • riflebird - noun velvety black Australian bird of paradise with green and purple iridescence on head and tail

  • rifling - noun the cutting of spiral grooves on the inside of the barrel of a firearm

  • rigamarole - noun a long and complicated and confusing procedure; a set of confused and meaningless statements

  • rigger - noun a long slender pointed sable brush used by artists; a sailing vessel with a specified rig; someone who rigs ships; someone who works on an oil rig

  • righteously - adv. in a righteous manner

  • righteousness - noun adhering to moral principles

  • rightfully - adv. by right

  • rightfulness - noun anything in accord with principles of justice

  • rightist - adj. believing in or supporting tenets of the political right; noun a member of a right wing political party

  • rightly - adv. with honesty

  • rightness - noun according with conscience or morality; conformity with some esthetic standard of correctness or propriety; conformity to fact or truth; appropriate conduct; doing the right thing

  • rigidify - verb make rigid and set into a conventional pattern; become rigid

  • rigidity - noun the physical property of being stiff and resisting bending; the quality of being rigid and rigorously severe

  • rigidly - adv. in a rigid manner

  • rigidness - noun the quality of being rigid and rigorously severe; the physical property of being stiff and resisting bending

  • rigmarole - noun a long and complicated and confusing procedure; a set of confused and meaningless statements

  • rigor - noun excessive sternness; something hard to endure; the quality of being logically valid

  • rigorously - adv. in a rigorous manner

  • rigorousness - noun excessive sternness; something hard to endure

  • riksmal - noun one of two official languages of Norway; closely related to Danish

  • rile - verb make turbid by stirring up the sediments of; cause annoyance in; disturb, especially by minor irritations

  • rima - noun a narrow elongated opening or fissure between two symmetrical parts

  • rimeless - adj. not having rhyme

  • rimless - adj. lacking a rim or frame

  • rimmed - adj. having a rim or a rim of a specified kind

  • rimose - adj. having a surface covered with a network of cracks and small crevices

  • rimu - noun tall New Zealand timber tree

  • rind - noun the natural outer covering of food (usually removed before eating); the tissue forming the hard outer layer (of e.g. a fruit)

  • rinderpest - noun an acute infectious viral disease of cattle (usually fatal); characterized by fever and diarrhea and inflammation of mucous membranes

  • ringdove - noun greyish Old World turtledove with a black band around the neck; often caged; Eurasian pigeon with white patches on wings and neck

  • ringed - adj. wearing a wedding ring; lawfully married; having colored rings around the body; adorned or crowned with a circlet; sometimes used as combining forms; shaped like a ring

  • ringer - noun (horseshoes) the successful throw of a horseshoe or quoit so as to encircle a stake or peg; a contestant entered in a competition under false pretenses; a person who is almost identical to another; a person who rings church bells (as for summoning the congregation)

  • ringhals - noun highly venomous snake of southern Africa able to spit venom up to seven feet

  • ringing - adj. having a tendency to reverberate or be repeatedly reflected; noun the giving of a ring as a token of engagement; having the character of a loud deep sound; the quality of being resonant; the sound of a bell ringing

  • ringleader - noun a person who leads (especially in illicit activities)

  • ringleted - adj. of hair in ringlets

  • ringlike - adj. having the shape of a ring

  • ringtail - noun an immature golden eagle; monkey of Central America and South America having thick hair on the head that resembles a monk's cowl; North American raccoon; raccoon-like omnivorous mammal of Mexico and the southwestern United States having a long bushy tail with black and white rings

  • ringworm - noun infections of the skin or nails caused by fungi and appearing as itching circular patches

  • rinsing - noun the removal of soap with clean water in the final stage of washing

  • rioter - noun troublemaker who participates in a violent disturbance of the peace; someone who rises up against the constituted authority

  • rioting - noun a state of disorder involving group violence

  • riotously - adv. in an exuberant manner; in a tumultuous and riotous manner

  • ripcord - noun a cord that is pulled to open a parachute from its pack during a descent; a cord that is pulled to open the gasbag of a balloon wide enough to release gas and so causes the balloon to descend

  • ripely - adv. with mature or developed appearance

  • ripeness - noun the state of being ripe

  • ripening - noun acquiring desirable qualities by being left undisturbed for some time; coming to full development; becoming mature

  • riposte - noun (fencing) a counterattack made immediately after successfully parrying the opponents lunge; a quick reply to a question or remark (especially a witty or critical one); verb make a return thrust; answer back

  • ripper - noun a murderer who slashes the victims with a knife

  • ripping - adj. resembling a sound of violent tearing as of something ripped apart or lightning splitting a tree

  • rippling - noun a small wave on the surface of a liquid

  • ripsaw - noun a handsaw for cutting with the grain of the wood

  • riser - noun structural member consisting of the vertical part of a stair or step; a vertical pipe in a building; a person who rises (especially from bed)

  • risibility - noun a disposition to laugh

  • rising - adj. newly come into prominence; advancing or becoming higher or greater in degree or value or status; coming to maturity; sloping upward; noun organized opposition to authority; a conflict in which one faction tries to wrest control from another; a movement upward

  • riskily - adv. in a dangerously risky manner

  • riskiness - noun a state of danger involving risk

  • riskless - adj. thought to be devoid of risk

  • risque - adj. suggestive of sexual impropriety

  • ritardando - adj. gradually decreasing in tempo

  • ritualism - noun exaggerated emphasis on the importance of rites or ritualistic forms in worship; the study of religious or magical rites and ceremonies

  • ritualist - noun a social anthropologist who is expert on rites and ceremonies; an advocate of strict observance of ritualistic forms

  • ritualistic - adj. of or characterized by or adhering to ritualism

  • ritualize - verb make or evolve into a ritual

  • ritually - adv. in a ceremonial manner

  • ritzy - adj. luxuriously elegant

  • rivalrous - adj. eager to surpass others

  • rive - verb separate or cut with a tool, such as a sharp instrument; tear or be torn violently

  • riveter - noun a worker who inserts and hammers rivets; a machine for driving rivets

  • riveting - adj. capable of arousing and holding the attention

  • rivina - noun small genus of erect perennial shrubby herbs; tropical and subtropical America

  • riyal - noun the basic unit of money in Qatar; the basic unit of money in Saudi Arabia

  • ro - noun an artificial language for international use that rejects all existing words and is based instead on an abstract analysis of ideas

  • roadbook - noun a guidebook describing the roads of a country; contains maps and (sometimes) a gazetteer

  • roadless - adj. lacking pathways

  • roadman - noun a workman who is employed to repair roads; a salesman who travels to call on customers

  • roadstead - noun a partly sheltered anchorage

  • roadworthiness - noun (of motor vehicles) the quality of being fit to drive on the open road
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