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Glossary · MWE Terms · R

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TermTypeDefinitionClassificationsUpdated
Roman CandlenounMWEa cylindrical firework that projects a series of colored balls of fireverifiedMay 18, 2026
Roman CatholicadjectiveMWEof or relating to or supporting RomanismcandidateMay 18, 2026
Roman CollarnounMWEa stiff white collar with no opening in the frontverifiedMay 18, 2026
Roman FleuvenounMWEa French novel in the form of a long chronicle of a family or other social groupverifiedMay 18, 2026
Roman LettersnounMWEa typeface used in ancient Roman inscriptionsverifiedMay 18, 2026
Roman NosenounMWEa nose with a prominent slightly aquiline bridgeverifiedMay 18, 2026
Roman NumeralnounMWEa symbol in the old Roman notationverifiedMay 18, 2026
Roman PrintnounMWEa typeface used in ancient Roman inscriptionsverifiedMay 18, 2026
Roman TypenounMWEa typeface used in ancient Roman inscriptionsverifiedMay 18, 2026
Romantic RealismnounMWEthe first coherent school of American artverifiedMay 18, 2026
Romper SuitnounMWEa one-piece garment for children to wear at playverifiedMay 18, 2026
Rood ScreennounMWEa screen in a churchverifiedMay 18, 2026
Roof GardennounMWEa garden on a flat roof of a buildingverifiedMay 18, 2026
Roof MushroomnounMWEa large genus of fungi belonging to the family PluteaceaeverifiedMay 18, 2026
Roof of the MouthnounMWEthe upper surface of the mouth that separates the oral and nasal cavitiesverifiedMay 18, 2026
Roof PeaknounMWEthe highest point of a roofverifiedMay 18, 2026
Roof RacknounMWEcarrier for holding luggage above the seats of a train or on top of a carverifiedMay 18, 2026
Roof RatnounMWEcommon household pest originally from Asia that has spread worldwideverifiedMay 18, 2026
Roofing MaterialnounMWEbuilding material used in constructing roofsverifiedMay 18, 2026
Roofing PapernounMWEa heavy paper impregnated with tar and used as part of a roof for waterproofingverifiedMay 18, 2026
Roofing TilenounMWEa thin flat slab of fired clay used for roofingverifiedMay 18, 2026
Room AccessnounMWEthe entrance (the space in a wall) through which you enter or leave a room or buildingverifiedMay 18, 2026
Room ClerknounMWEa hotel clerk who is responsible for room assignments to guestsverifiedMay 18, 2026
Room DecoratornounMWEa person who specializes in designing architectural interiors and their furnishingsverifiedMay 18, 2026
Room LightnounMWElight that provides general illumination for a roomverifiedMay 18, 2026
Room RatenounMWEthe rate charged daily for a hotel roomverifiedMay 18, 2026
Room TemperaturenounMWEthe normal temperature of room in which people liveverifiedMay 18, 2026
Rooming HousenounMWEa house where rooms are rentedverifiedMay 18, 2026
Root BeernounMWEcarbonated drink containing extracts of roots and herbsverifiedMay 18, 2026
Root Beer FloatnounMWEan ice-cream soda made with ice cream floating in root beerverifiedMay 18, 2026
Root CanalnounMWEthe passage in the root of a tooth through which its nerve and blood vessels enter the pulp cavityverifiedMay 18, 2026
Root CapnounMWEthimble-shaped mass of cells covering and protecting the growing tip of a rootverifiedMay 18, 2026
root causenounMWEThe underlying or original source of an incident or problem.verifiedMay 9, 2026
Root cause analysisnounMWEA principle-based, systems approach for the identification of underlying causes associated with a particular set of risks.verifiedMay 9, 2026
Root CelerynounMWEgrown for its thickened edible aromatic rootverifiedMay 18, 2026
Root CellarnounMWEan excavation where root vegetables are storedverifiedMay 18, 2026
Root Certification AuthoritynounMWEIn a hierarchical Public Key Infrastructure, the Certification Authority whose public key serves as the most trusted datum (i.e., the beginning of trust paths) for a security domain.verifiedMay 9, 2026
Root ClimbernounMWEa plant that climbs by its adventitious roots e.g. ivyverifiedMay 18, 2026
Root CropnounMWEcrop grown for its enlarged roots: e.g. beetsverifiedMay 18, 2026
root forverbMWEtake sides withcandidateJun 3, 2026
Root HairnounMWEthin hairlike outgrowth of an epidermal cell just behind the tipverifiedMay 18, 2026
root onverbMWEspur on or encourage especially by cheers and shoutscandidateJun 3, 2026
root outverbMWEdestroy completely, as if down to the rootsverifiedJun 3, 2026
Root RotnounMWEdisease characterized by root decayverifiedMay 18, 2026
Root SystemnounMWEa developed system of rootsverifiedMay 18, 2026
Root VegetablenounMWEany of various fleshy edible underground roots or tubersverifiedMay 18, 2026
Root WordnounMWE(linguistics) the form of a word after all affixes are removedverifiedMay 18, 2026
Root-Mean-Square Deviation (RMSD)nounMWEof an estimator of a parameter[; ...] the square-root of the mean squared error (MSE) of the estimator. In symbols, if X is an estimator of the parameter t, then RMSE(X) = ( E( (X−t)2 ) )½. The RMSE of an estimator is a measure of the expected error of the estimator. The units of RMSE are the same as the units of the estimator.verifiedAug 28, 2026
Rooter SkunknounMWElarge naked-muzzled skunk with white back and tailverifiedMay 18, 2026
Rooting ReflexnounMWEreflex consisting of head-turning and sucking movements elicited in a normal infant by gently stroking the side of the mouth or cheekverifiedMay 18, 2026
roots of trustnounMWEHighly reliable hardware, firmware, and software components that perform specific, critical security functions. Because roots of trust are inherently trusted, they must be secure by design. Roots of trust provide a firm foundation from which to build security and trust. [25]verifiedAug 30, 2026
Rope BridgenounMWEa bridge consisting of ropesverifiedMay 18, 2026
Rope BurnnounMWEabrasion (usually on the hands) caused by friction from a ropeverifiedMay 18, 2026
rope downverbMWElower oneself with a rope coiled around the body from a mountainsideverifiedJun 3, 2026
rope inverbMWEdraw in as if with a ropeverifiedJun 3, 2026
Rope LaddernounMWEa ladder with side pieces of ropeverifiedMay 18, 2026
rope offverbMWEdivide by means of a ropeverifiedJun 3, 2026
Rope TownounMWEa ski tow offering only a moving rope to hold ontoverifiedMay 18, 2026
rope upverbMWEattach to one another, for safetyverifiedJun 3, 2026
Rope YardnounMWEworkplace consisting of a long narrow path or shed where rope is madeverifiedMay 18, 2026
Rorschach TestnounMWEa projective tests using bilaterally symmetrical inkblotsverifiedMay 18, 2026
Rose AcacianounMWElarge shrub or small tree of the eastern United States having bristly stems and large clusters of pink flowersverifiedMay 18, 2026
Rose ApplenounMWEfragrant oval yellowish tropical fruit used in jellies and confectionsverifiedMay 18, 2026
Rose BaynounMWEan ornamental but poisonous flowering shrub having narrow evergreen leaves and clusters of fragrant white to pink or red flowers: native to East Indies but widely cultivated in warm regionsverifiedMay 18, 2026
Rose BednounMWEa flower bed in which roses are growingverifiedMay 18, 2026
Rose BeetlenounMWEa common metallic green European beetle: larvae feed on plant roots and adults on leaves and flowers of e.g. rosesverifiedMay 18, 2026
Rose BugnounMWEcommon North American beetle: larvae feed on roots and adults on leaves and flowers of e.g. rose bushes or apple trees or grape vinesverifiedMay 18, 2026
Rose CampionnounMWEan old cottage garden plant of southeastern Europe widely cultivated for its attractive white woolly foliage and showy crimson flowersverifiedMay 18, 2026
Rose ChafernounMWEcommon North American beetle: larvae feed on roots and adults on leaves and flowers of e.g. rose bushes or apple trees or grape vinesverifiedMay 18, 2026
Rose ChestnutnounMWEhandsome East Indian evergreen tree often planted as an ornamental for its fragrant white flowers that yield a perfumeverifiedMay 18, 2026
Rose FamilynounMWEa large family of dicotyledonous plants of order RosalesverifiedMay 18, 2026
Rose GardennounMWEa garden for growing rosesverifiedMay 18, 2026
Rose GeraniumnounMWEany of several southern African geraniums having fragrant three-lobed to five-lobed leaves and pink flowersverifiedMay 18, 2026
Rose Globe LilynounMWEglobe lily with deep rose-pink or purple egg-shaped flowers on flexuous stemsverifiedMay 18, 2026
Rose GumnounMWEvery tall tree of Queensland and New South WalesverifiedMay 18, 2026
Rose HipnounMWEthe fruit of a rose plantverifiedMay 18, 2026
Rose LeeknounMWENorth American bulbous plantverifiedMay 18, 2026
Rose MallownounMWEshowy shrub of salt marshes of the eastern United States having large rose-colored flowersverifiedMay 18, 2026
Rose MossnounMWEwidely cultivated in many varieties for its fleshy moss-like foliage and profusion of brightly colored flowersverifiedMay 18, 2026
Rose of JerichonounMWEsmall grey Asiatic desert plant bearing minute white flowers that rolls up when dry and expands when moistverifiedMay 18, 2026
Rose of SharonnounMWEAsiatic shrub or small shrubby tree having showy bell-shaped rose or purple or white flowers and usually three-lobed leavesverifiedMay 18, 2026
Rose OilnounMWEa volatile fragrant oil obtained from fresh roses by steam distillationverifiedMay 18, 2026
Rose PeriwinklenounMWEcommonly cultivated Old World woody herb having large pinkish to red flowersverifiedMay 18, 2026
Rose PinknounMWEany of several pink-flowered marsh plant of the eastern United States resembling a true centauryverifiedMay 18, 2026
Rose QuartznounMWEa translucent rose-red variety of quartz used for ornamentsverifiedMay 18, 2026
Rose WaternounMWEperfume consisting of water scented with oil of rosesverifiedMay 18, 2026
Rose WindownounMWEcircular window filled with traceryverifiedMay 18, 2026
Rose WinenounMWEpinkish table wine from red grapes whose skins were removed after fermentation beganverifiedMay 18, 2026
Rose-Apple TreenounMWEtropical tree of the East Indies cultivated for its edible fruitverifiedMay 18, 2026
Rose-Colored PastornounMWEglossy black bird with pink back and abdomenverifiedMay 18, 2026
Rose-Colored StarlingnounMWEglossy black bird with pink back and abdomenverifiedMay 18, 2026
Roseate SpoonbillnounMWEtropical rose-colored New World spoonbillverifiedMay 18, 2026
Rosebay WillowherbnounMWEtall North American perennial with creeping rootstocks and narrow leaves and spikes of pinkish-purple flowers occurring in great abundance in burned-over areas or recent clearingsverifiedMay 18, 2026
Rosebud CherrynounMWEshrub or tree native to Japan cultivated as an ornamental for its rose-pink flowersverifiedMay 18, 2026
Rosebud OrchidnounMWEorchid of central and northern South America having 1- to 3-blossomed racemes of large showy rose-colored flowersverifiedMay 18, 2026
Roseola InfantilisnounMWEa viral disease of infants and young childrenverifiedMay 18, 2026
Roseola InfantumnounMWEa viral disease of infants and young childrenverifiedMay 18, 2026
Rosetta StonenounMWEA key to decoding a difficult puzzleverifiedMay 18, 2026
Rosewood TreenounMWEany of those hardwood trees of the genus Dalbergia that yield rosewood--valuable cabinet woods of a dark red or purplish color streaked and variegated with blackverifiedMay 18, 2026
Rosid Dicot FamilynounMWEa family of dicotyledonous plantsverifiedMay 18, 2026