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Glossary · Nouns · R

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TermTypeDefinitionClassificationsUpdated
Refrigerator CarnounMWEa freight car that is equipped with refrigeration systemverifiedMay 18, 2026
Refrigerator CookienounMWEdough formed into a roll and chilled in the refrigerator then sliced and bakedverifiedMay 18, 2026
Refuelingnounthe activity of supplying or taking on fuelverifiedMay 18, 2026
Refugenounsomething or someone turned to for assistance or securityverifiedMay 18, 2026
Refugeenounan exile who flees for safetyverifiedMay 18, 2026
Refugee CampnounMWEshelter for persons displaced by war or political oppression or for religious beliefsverifiedMay 18, 2026
Refulgencenounthe quality of being bright and sending out rays of lightverifiedMay 18, 2026
Refulgencynounthe quality of being bright and sending out rays of lightverifiedMay 18, 2026
Refurbishmentnounthe state of being restored to its former good conditionverifiedMay 18, 2026
Refusalnouna message refusing to accept something that is offeredverifiedMay 18, 2026
Refuse CollectornounMWEsomeone employed to collect and dispose of refuseverifiedMay 18, 2026
Refuse HeapnounMWEan accumulation of refuse and discarded matterverifiedMay 18, 2026
Refutalnounthe act of determining that something is falseverifiedMay 18, 2026
Refutationnounany evidence that helps to establish the falsity of somethingverifiedMay 18, 2026
Refuternouna debater who refutes or disproves by offering contrary evidence or argumentverifiedMay 18, 2026
Regainingnoungetting something back againverifiedMay 18, 2026
RegalianounParaphernalia indicative of royalty or other high office.verifiedMay 18, 2026
Regattanouna meeting for boat racesverifiedMay 18, 2026
Regencynounthe period of time during which a regent governsverifiedMay 18, 2026
Regenerationnounforming again (especially with improvements or removal of defects)verifiedMay 18, 2026
Reggaenounpopular music originating in the West IndiesverifiedMay 18, 2026
Regicidenounsomeone who commits regicideverifiedMay 18, 2026
Regimenounthe organization that is the governing authority of a political unitverifiedMay 18, 2026
Regimennoun(medicine) a systematic plan for therapy (often including diet)verifiedMay 18, 2026
Regimentalsnounthe military uniform and insignia of a regimentverifiedMay 18, 2026
Regimentationnounthe imposition of order or disciplineverifiedMay 18, 2026
Regionnounthe approximate amount of something (usually used prepositionally as in `in the region of')verifiedMay 18, 2026
Regional AnaesthesianounMWEloss of sensation in a region of the body produced by application of an anesthetic agent to all the nerves supplying that region (as when an epidural anesthetic is administered to the pelvic region during childbirth)verifiedMay 18, 2026
Regional AnatomynounMWEthe study of anatomy based on regions or divisions of the body and emphasizing the relations between various structures (muscles and nerves and arteries etc.) in that regionverifiedMay 18, 2026
Regional AnesthesianounMWEloss of sensation in a region of the body produced by application of an anesthetic agent to all the nerves supplying that region (as when an epidural anesthetic is administered to the pelvic region during childbirth)verifiedMay 18, 2026
Regional EnteritisnounMWEa serious chronic and progressive inflammation of the ileum producing frequent bouts of diarrhea with abdominal pain and nausea and fever and weight lossverifiedMay 18, 2026
Regional IleitisnounMWEa serious chronic and progressive inflammation of the ileum producing frequent bouts of diarrhea with abdominal pain and nausea and fever and weight lossverifiedMay 18, 2026
Regionalismnouna foreign policy that defines the international interests of a country in terms of particular geographic areasverifiedMay 18, 2026
Register LanguagenounMWEa tone language that uses different voice registersverifiedMay 18, 2026
Registered BondnounMWEa bond whose owner is recorded on the books of the issuerverifiedMay 18, 2026
Registered MailnounMWEmail that is registered by the post office when sent in order to assure safe deliveryverifiedMay 18, 2026
Registered NursenounMWEa graduate nurse who has passed examinations for registrationverifiedMay 18, 2026
Registered portsnounMWERegistered ports--1024 through 49151: Listed by the IANA and on most systems can be used by ordinary user processes or programs executed by ordinary usersNetworkMay 9, 2026
Registered PostnounMWEmail that is registered by the post office when sent in order to assure safe deliveryverifiedMay 18, 2026
Registered RepresentativenounMWEsomeone in charge of a client's account for an advertising agency or brokerage or other service businessverifiedMay 18, 2026
Registered SecuritynounMWEa security whose owner's name is recorded on the books of the issuer (or issuer's agent)verifiedMay 18, 2026
Registrantnouna person who is formally entered (along with others) in a register (and who obtains certain rights thereby)verifiedMay 18, 2026
Registrarnouna person employed to keep a record of the owners of stocks and bonds issued by the companyverifiedMay 18, 2026
RegistrationnounThe process through which a party applies to become a subscriber of a Credentials Service Provider (CSP) and a Registration Authority validates the identity of that party on behalf of the CSP.ProcessMay 12, 2026
Registration authoritynounMWEA trusted entity that establishes and vouches for the identity of a Subscriber to a CSP. The RA may be an integral part of a CSP, or it may be independent of a CSP, but it has a relationship to the CSP(s).OrganizationRegulatedPIIMay 9, 2026
Registration FirenounMWEfire delivered to obtain accurate data for subsequent effective engagement of targetsverifiedMay 18, 2026
Registration NumbernounMWEthe number on the license plate that identifies the car that bears itverifiedMay 18, 2026
RegistrynounThe Registry in Windows operating systems in the central set of settings and information required to run the Windows computer.SystemMay 9, 2026
Regnellidiumnounsmall latex-containing aquatic fern of southern BrazilverifiedMay 18, 2026
Regosolnouna type of soil consisting of unconsolidated material from freshly deposited alluvium or sandverifiedMay 18, 2026
RegressionnounRegression is a process of predicting the value to a yes or no label provided it falls on a continuous spectrum of input values, subcategory of supervised learning.ProcessMay 18, 2026
regression analysisnounMWEThe use of scripted tests which are used to test software for all possible input is should expect. Typically developers will create a set of regression tests that are executed before a new version of a software is released. Also see "fuzzing".ProcessMay 9, 2026
Regression CoefficientnounMWEwhen the regression line is linear (y = ax + b) the regression coefficient is the constant (a) that represents the rate of change of one variable (y) as a function of changes in the other (x)verifiedMay 18, 2026
Regression CurvenounMWEa smooth curve fitted to the set of paired data in regression analysisverifiedMay 18, 2026
Regression EquationnounMWEthe equation representing the relation between selected values of one variable (x) and observed values of the other (y)verifiedMay 18, 2026
Regression LinenounMWEa smooth curve fitted to the set of paired data in regression analysisverifiedMay 18, 2026
Regression of Y on XnounMWEthe equation representing the relation between selected values of one variable (x) and observed values of the other (y)verifiedMay 18, 2026
Regression Toward the MeannounMWEthe relation between selected values of x and observed values of y (from which the most probable value of y can be predicted for any value of x)verifiedMay 18, 2026
Regretsnouna polite refusal of an invitationverifiedMay 18, 2026
Regular ArmynounMWEa permanent organization of the military land forces of a nation or stateverifiedMay 18, 2026
Regular Convex PolyhedronnounMWEany one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruentverifiedMay 18, 2026
Regular Convex SolidnounMWEany one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruentverifiedMay 18, 2026
Regular DodecahedronnounMWEa dodecahedron with twelve regular pentagons as facesverifiedMay 18, 2026
Regular HexagonnounMWEa hexagon with six sides of equal lengthverifiedMay 18, 2026
Regular HexahedronnounMWEa hexahedron with six equal squares as facesverifiedMay 18, 2026
Regular IcosahedronnounMWEan icosahedron with twenty equilateral triangles as facesverifiedMay 18, 2026
Regular OctahedronnounMWEan octahedron with eight equilateral triangles as facesverifiedMay 18, 2026
Regular PaymentnounMWEa payment made at regular timesverifiedMay 18, 2026
Regular PolygonnounMWEa polygon with all sides and all angles equalverifiedMay 18, 2026
Regular PolyhedronnounMWEany one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruentverifiedMay 18, 2026
Regular RecurrencenounMWErecurring at regular intervalsverifiedMay 18, 2026
Regular TetrahedronnounMWEa tetrahedron with four equilateral triangular facesverifiedMay 18, 2026
Regularisationnounthe condition of having been made regular (or more regular)verifiedMay 18, 2026
Regularitynouna property of polygons: the property of having equal sides and equal anglesverifiedMay 18, 2026
Regularizationnounthe condition of having been made regular (or more regular)verifiedMay 18, 2026
Regulatingnounthe act of controlling or directing according to ruleverifiedMay 18, 2026
RegulationnounA documented rule or directive created and maintained by a governing authority.RequirementMay 9, 2026
Regulation CCnounMWEA regulation (12 CFR 229) promulgated by the Board of Governors of the Federal Reserve System regarding the availability of funds and the collection of checks. The regulation governs the availability of funds deposited in checking accounts and the collection and return of checks.RequirementRegulatedMay 12, 2026
Regulation EnounMWEA regulation (12 CFR 205) promulgated by the Board of Governors of the Federal Reserve System to ensure consumers a minimum level of protection in disputes arising from electronic fund transfers.RequirementRegulatedMay 9, 2026
Regulation TimenounMWE(sports) the normal prescribed duration of a gameverifiedMay 18, 2026
Regulation ZnounMWERegulation Z, the Truth in Lending Act (TILA) (12 CFR 226) promulgated by the Board of Governors of the Federal Reserve System. The regulation prescribes uniform methods for computing the cost of credit, disclosing credit terms, and resolving errors on certain types of credit accounts.RequirementRegulatedMay 9, 2026
regulatornounA person or body that supervises a particular industry, business activity, or legal body.OrganizationMay 9, 2026
Regulator GenenounMWEa gene that produces a repressor substance that inhibits an operator geneverifiedMay 18, 2026
regulatory agencynounMWEGovernment body formed or mandated under the terms of a legislative act to ensure compliance with the provisions of the act, and in carrying out its purpose.OrganizationMay 12, 2026
Regulatory AuthoritynounMWEa governmental agency that regulates businesses in the public interestverifiedMay 18, 2026
Regulatory GenenounMWEa gene that produces a repressor substance that inhibits an operator geneverifiedMay 18, 2026
regulatory guidancenounMWEAssistance with the compliance to regulations.RequirementRegulatedMay 9, 2026
regulatory noticenounMWEAny documented (in print or electronic format) notice used to inform affected parties regarding regulatory issues.ArtifactRegulatedMay 12, 2026
Regulatory OffencenounMWEcrimes created by statutes and not by common lawverifiedMay 18, 2026
Regulatory OffensenounMWEcrimes created by statutes and not by common lawverifiedMay 18, 2026
Regulatory requirementsnounMWERules or laws that regulate conduct and that the enterprise must obey to become compliantRequirementRegulatedMay 9, 2026
Regurnouna rich black loam of IndiaverifiedMay 18, 2026
Regur SoilnounMWEa rich black loam of IndiaverifiedMay 18, 2026
Regurgitationnounthe reflex act of ejecting the contents of the stomach through the mouthverifiedMay 18, 2026
Rehabilitationnounvindication of a person's character and the re-establishment of that person's reputationverifiedMay 18, 2026
Rehabilitation ProgramnounMWEa program for restoring someone to good healthverifiedMay 18, 2026
Reharmonisationnouna piece of music whose original harmony has been revisedverifiedMay 18, 2026
Reharmonizationnouna piece of music whose original harmony has been revisedverifiedMay 18, 2026
Rehearingnounthe act of hearing againverifiedMay 18, 2026
Rehearsalnouna practice session in preparation for a public performance, as of a play or speech or concertverifiedMay 18, 2026