Glossary · Nouns · R
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TermTypeDefinitionClassificationsUpdated
Random SamplenounMWEa sample in which every element in the population has an equal chance of being selectedverified
Random WalknounMWEa stochastic process consisting of a sequence of changes each of whose characteristics (as magnitude or direction) is determined by chanceverified
Random-Access MemorynounMWEthe most common computer memory which can be used by programs to perform necessary tasks while the computer is onverified
Randomisationnouna deliberately haphazard arrangement of observations so as to simulate chanceverified
Randomizationnouna deliberately haphazard arrangement of observations so as to simulate chanceverified
RandomizernounAnalog or digital source of unpredictable, unbiased, and usually independent bits. Randomizers can be used for several different functions, including key generation or to provide a starting state for a key generator.CapabilityRegulated
Randomnessnoun(thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical workverified
Range AnimalnounMWEany animal that lives and grazes in the grassy open land of western North America (especially horses, cattle, sheep)verified
Range of a FunctionnounMWE(mathematics) the set of values of the dependent variable for which a function is definedverified
Range PolenounMWEsurveying instrument consisting of a straight rod painted in bands of alternate red and white each one foot wideverified
Rangefindernouna measuring instrument (acoustic or optical or electronic) for finding the distance of an objectverified
Ranging PolenounMWEsurveying instrument consisting of a straight rod painted in bands of alternate red and white each one foot wideverified
Rangpur LimenounMWEhybrid between mandarin orange and lemon having very acid fruit with orange peelverified
Ranidnouninsectivorous usually semiaquatic web-footed amphibian with smooth moist skin and long hind legsverified
Ranitidinenouna histamine blocker and antacid (trade name Zantac) used to treat peptic ulcers and gastritis and esophageal refluxverified
Rank and FilenounMWEthe ordinary members of an organization (such as the enlisted soldiers of an army)verified
Rank-Difference CorrelationnounMWEthe most commonly used method of computing a correlation coefficient between the ranks of scores on two variablesverified
Rank-Difference Correlation CoefficientnounMWEthe most commonly used method of computing a correlation coefficient between the ranks of scores on two variablesverified
Rank-Order CorrelationnounMWEthe most commonly used method of computing a correlation coefficient between the ranks of scores on two variablesverified
Rank-Order Correlation CoefficientnounMWEthe most commonly used method of computing a correlation coefficient between the ranks of scores on two variablesverified
Rankingnouna type of machine learning that sorts data in a relevant order[; often used by companies] to optimize search and recommendations.Process
Ranknessnounthe property of producing abundantly and sustaining vigorous and luxuriant growthverified
RansomwarenounA type of malware that is a form of extortion. It works by encrypting a victim's hard drive denying them access to key files. The victim must then pay a ransom to decrypt the files and gain access to them again.Threat
Rap MusicnounMWEgenre of African-American music of the 1980s and 1990s in which rhyming lyrics are chanted to a musical accompanimentverified
Rap SessionnounMWEconversation in a situation where feelings can be expressed and criticized or supportedverified
Rape OilnounMWEedible light yellow to brown oil from rapeseed used also as a lubricant or illuminantverified
Rapeseed OilnounMWEedible light yellow to brown oil from rapeseed used also as a lubricant or illuminantverified
Rappellernouna person who descends down a nearly vertical face by using a doubled rope that is wrapped around the body and attached to some high pointverified
Rare-Earth ElementnounMWEany element of the lanthanide series (atomic numbers 57 through 71)verified
Raree-Shownounan exhibition of pictures or objects viewed through a small hole or magnifying glassverified
Rasp FernnounMWEany fern of the genus Doodia having pinnate fronds with sharply dentate pinnaeverified
Raspberrynounwoody brambles bearing usually red but sometimes black or yellow fruits that separate from the receptacle when ripe and are rounder and smaller than blackberriesverified
Raspberry BushnounMWEwoody brambles bearing usually red but sometimes black or yellow fruits that separate from the receptacle when ripe and are rounder and smaller than blackberriesverified
Rasslingnounthe sport of hand-to-hand struggle between unarmed contestants who try to throw each other downverified
Rasternounthe rectangular formation of parallel scanning lines that guide the electron beam on a television screen or a computer monitorverified