Glossary · Nouns · R
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TermTypeDefinitionClassificationsUpdated
Restriction FragmentnounMWEthe fragment of DNA that is produced by cleaving DNA with a restriction enzymeverified
Restriction NucleasenounMWEany of the enzymes that cut nucleic acid at specific restriction sites and produce restriction fragmentsverified
Restrictive ClausenounMWEa subordinate clause that limits or restricts the meaning of the noun phrase it modifiesverified
Restrictivenessnouna grammatical qualification that makes the meaning more specific (`red hat' has a more specific meaning than `hat')verified
Resultant RolenounMWEthe semantic role of the noun phrase whose referent exists only by virtue of the activity denoted by the verb in the clauseverified
Resulting TrustnounMWEa trust created by a court when it is judged that it was the intention of the parties to create a trustverified
Resurrection FernnounMWEfern growing on rocks or tree trunks and having fronds greyish and scurfy belowverified
Resurrection PlantnounMWEsmall grey Asiatic desert plant bearing minute white flowers that rolls up when dry and expands when moistverified
Resuscitatornouna breathing apparatus used for resuscitation by forcing oxygen into the lungs of a person who has undergone asphyxia or arrest of respirationverified
Resuspensionnouna renewed suspension of insoluble particles after they have been precipitatedverified
Retail paymentsnounMWEPayments, typically small, made in the goods and services market.DataRegulatedPCI
Retainernouna dental appliance that holds teeth (or a prosthesis) in position after orthodontic treatmentverified
Retaining WallnounMWEa wall that is built to resist lateral pressure (especially a wall built to prevent the advance of a mass of earth)verified
Retaliatory EvictionnounMWEan eviction in reprisal for the tenant's good-faith complaints against the landlordverified
Retarded DepressionnounMWEa state of clinical depression in which the individual is lethargic and slow to initiate actionverified
Retenouna network of intersecting blood vessels or intersecting nerves or intersecting lymph vesselsverified
Rete TestisnounMWEnetwork of tubules carrying sperm from the seminiferous tubules to the vasa efferentiaverified
Retention BasinnounMWEa storage site similar to a detention basin but the water in storage is permanently obstructed from flowing downstreamverified
Retention LimitnounMWErefers to the amount of information that is stored long-term, and can be measured in volume (the size of the total collected logs in bytes) and time (the number of months or years that logs are stored for).RequirementRegulated
Retention requirementnounMWERequirement established by a company or by regulation for the length of time and/or for the amount of information that should be retained.RequirementRegulated
Reticlenouna network of fine lines, dots, cross hairs, or wires in the focal plane of the eyepiece of an optical instrumentverified
Reticular Activating SystemnounMWEthe network in the reticular formation that serves an alerting or arousal functionverified
Reticulationnoun(photography) the formation of a network of cracks or wrinkles in a photographic emulsionverified
Reticulenouna network of fine lines, dots, cross hairs, or wires in the focal plane of the eyepiece of an optical instrumentverified
Reticuloendothelial SystemnounMWEa widely distributed system consisting of all the cells able to ingest bacteria or colloidal particles etc, except for certain white blood cellsverified
Reticulumnounany fine network (especially one in the body composed of cells or blood vessels)verified
Retinal ConenounMWEa visual receptor cell in the retina that is sensitive to bright light and to colorverified
Retinal DetachmentnounMWEvisual impairment resulting from the retina becoming separated from the choroid in the back of the eyeverified
Retinenenouneither of two yellow to red retinal pigments formed from rhodopsin by the action of lightverified
Retinolnounan unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from caroteneverified
Retirement CommunitynounMWEa planned community for residents who have retired from an active working lifeverified
Retirement ComplexnounMWEa planned community for residents who have retired from an active working lifeverified
Retirement Savings AccountnounMWEa plan for setting aside money to be spent after retirementverified
Retrenchmentnounentrenchment consisting of an additional interior fortification to prolong the defenseverified
Retrialnouna new trial in which issues already litigated and to which the court has already rendered a verdict or decision are reexamined by the same courtverified
Retributionnounthe act of taking revenge, such as harming someone in retaliation for something harmful that they have done, especially in the next lifeverified
Retroflectionnounan articulatory gesture made by turning the tip of the tongue back against the roof of the mouthverified
Retroflexionnounan articulatory gesture made by turning the tip of the tongue back against the roof of the mouthverified
Retrorocketnouna small rocket engine on a larger rocket or spacecraft that is fired to slow or alter its courseverified