trinucleotide repeatTandem repeats of three nucleotides that are present in many genes. Commonly trinucleotide repeats have undergone variable expansion in copy number…
Triostat(TRY-oh-stat) A drug that is used to treat certain thyroid (a gland located near the voice box) conditions.
TripartiteRelating to or executed by three parties: a tripartite agreement.
tripartite matingA process in which conjugation is used to transfer a plasmid vector to a when the plasmid vector is not self-mobilizable.
TripleA basic RDF statement resembling the English-Language construct of [subject predicate object] that is made up of [Resource property Resource] or [Resource…
triple data encryption algorithm (TDEA)An encryption algorithm whose key consists of three DES (Data Encryption Standard) keys, which is also referred to as a key bundle.
Triple DESAn implementation of the Data Encryption Standard (DES) algorithm that uses three passes of the DES algorithm instead of one as used in ordinary DES…
Triple DopplerSince any wind has three components (say, in the x, y and z directions), and a single radar measures in only one direction (radial), a single radar cannot…
Triple Pane (Window)This represents three layers of glazing in a window with an airspace between the middle glass and the exterior and interior panes.
Triple PointThe intersection point between two boundaries (dry line, outflow boundary, cold front, etc.), often a focus for thunderstorm development.
triple precisionCharacterized by the use of three computer words to represent a number in accordance with required precision.
tripletA sequential group of three nucleotides in DNA or RNA. See: codon.
triploidA cell, tissue or organism containing three times the haploid number of chromosomes.
TripodA three-legged support for a surveying instrument.
TRIPsTrade Related Aspects of Intellectual Property
triptorelin(trip-toh-REL-in) A drug that is used to treat advanced prostate cancer, and is being studied in the treatment of breast cancer.
Trisenox(TRIH-seh-nox) A drug used to treat acute promyelocytic leukemia (APL) that has not gotten better or that has come back after treatment with other…
trisomyThe presence in a diploid cell or organism of an extra chromosome of one homologue (chromosome formula: 2n + 1). See: disomy; monosomic.
tristimulus valuesIn a given trichromatic system, the amounts of the three reference color stimuli required to match the light considered in a given chromatic system.
triticaleThe hybrid man-made species formed by the crossing of tetraploid or hexaploid wheat with diploid rye.
troffA venerable typesetting language from which Perl derives the name of its 0 variable and which is secretly used in the production of Camel books.
Trojan horseA computer program with an apparently or actually useful function that contains additional (hidden) functions that surreptitiously exploit the legitimate…
TrollThe act of using words or posts designed to attract predictable responses or flames; also used as a noun to refer to a person that trolls.
trollingTowing a lure or several lures behind a boat. When a fish is caught on the trolled lure, the boat is typically stopped and the fish is reeled in.
trolling motorA small electric fishing motor, typically mounted on the bow, which is used as secondary means of propulsion for positioning or maneuvering a boat quietly…
Trombe WallA wall with high thermal mass used to store solar energy passively in a solar home.
Trophoblast(TROH-foh-BLAST) A thin layer of cells that helps a developing embryo attach to the wall of the uterus, protects the embryo, and forms a part of the…
TrophozoiteA developmental form during the blood stage of malaria parasites. After merozoites have invaded the red blood cell, they develop into trophozoites…
Tropical AdvisoryOfficial information issued by tropical cyclone warning centers describing all tropical cyclone watches and warnings in effect along with details…
Tropical Analysis and Forecast BranchOne of three branches of the Tropical Prediction Center (TPC). It provides year-round products involving marine forecasting, aviation forecasts and…
Tropical CycloneA warm-core, non-frontal synoptic-scale cyclone, originating over tropical or subtropical waters with organized deep convection and a closed surface wind…
Tropical Cyclone Plan of the DayA coordinated mission plan that tasks operational weather reconnaissance requirements during the next 1100 to 1100 UTC day or as required, describes…
Tropical Cyclone Position EstimateThe National Hurricane Center issues a position estimate between scheduled advisories whenever the storm center is within 200 nautical miles of U.S.
Tropical Cyclone UpdateThis brief statement is issued by the National Hurricane Center in lieu of or preceding special advisories to inform of significant changes in a tropical…
Tropical DepressionA tropical cyclone in which the maximum 1-minute sustained surface wind is 33 knots (38 mph) or less.
Tropical DisturbanceA discrete tropical weather system of apparently organized convection--generally 100 to 300 mi in diameter--originating in the tropics or subtropics…
Tropical StormA tropical cyclone in which the maximum 1-minute sustained surface wind ranges from 34 to 63 knots (39 to 73 mph) inclusive.
Tropical Storm SummaryWritten by the Hydrometeorological Prediction Center* (HPC) after subtropical and names tropical cyclones have moved inland and advisories have been…
Tropical Storm WarningA warning for sustained surface winds, associated with a tropical cyclone, within the range of 34 to 63 knots (39 to 73 mph), expected in a specified…
Tropical Storm WatchAn announcement that a tropical storm poses or tropical storm conditions pose a threat to coastal areas generally within 36 hours.
Tropical Wave(formerly known as inverted trough) - A trough or cyclonic curvature maximum in the trade wind easterlies.
Tropical Weather DiscussionThese messages are issued 4 times daily by the Tropical Analysis and Forecast Branch (TAFB) to describe significant synoptic weather features in the…
Tropical Weather OutlookThis outlook normally covers the tropical and subtropical waters, discussing the weather conditions, emphasizing any disturbed and suspicious areas which…
Tropical Weather SummaryThe National Hurricane Center issues a monthly summary of tropical weather is included at the end of the month or as soon as feasible thereafter, to…
Tropical Western Pacific (TWP) siteThe second ARM research site, it is located in the south Pacific Ocean occupying Manus Island, Nauru Island, and Darwin, Australia.
TropicsAreas of the Earth within 20° North and South of the equator.
tropisetron(troh-PIH-seh-tron) A substance used to treat nausea and vomiting caused by cancer treatment. It is not available in the United States.
tropismPlant response to an external stimulus, resulting in the bending/turning of stem or root growth.
TropopauseThe upper boundary of the troposphere, usually characterized by an abrupt change in lapse rate from positive (decreasing temperature with height) to…
Tropopause JetType of jet stream found near the tropopause. Examples of this type of jet are the subtropical and polar fronts.
Tropospheric ScatterThe propagation of electromagnetic waves by scattering as a result of irregularities in the physical properties of the troposphere.
tropospheric waveA radio wave that is propagated by reflection from a place of abrupt change in the dielectric constant, or its gradient, in the troposphere.
TroughAn elongated area of relatively low atmospheric pressure, usually not associated with a closed circulation, and thus used to distinguish from a closed low.
TROWALTROugh of Warm Air ALoft. Typically used during winter weather, it is a "tongue" of relatively warm/moist air aloft that wraps around to the north and…
troxacitabineA drug being studied for use as an anticancer agent.
TRP(1) Test Readiness Program. (2) Technology Reinvestment Program. (3) Technology Readiness Program (pre-acquisition program status).
trueAny scalar value that doesn't evaluate to 0 or "".
True Accept RateA statistic used to measure biometric performance when operating in the verification task.
True BillAn indictment that has been presented to the grand jury, and is found to have sufficient probable cause on the basis of evidence presented, to hold a…
True CountThe running count divided by the number of decks in he shoe.
true lavender(...LA-vun-der) A plant with aromatic leaves and flowers that is a member of the mint family.
True OddsThe actual probability of an event happening.
True PowerThe actual power rating that is developed by a motor before losses occur.
True Reject RateA statistic used to measure biometric performance when operating in the verification task.
True ResolutionThe true optical resolution of a scanner is the number of pixels per inch (without any software enhancements).
True SouthThe direction, at any point on the earth that is geographically in the northern hemisphere, facing toward the South Pole of the earth.
True WindWind relative to a fixed point on the earth. Wind relative to a moving point is called APPARENT or RELATIVE WIND.
true-to-typeConforming to the phenotype of the breed/variety.
truncateThe act of cutting off the decimal point and number to its right. This does not include rounding The act of shortening or abbreviating by cutting off the…
truncated binary exponential backoffIn carrier sense multiple access with collision avoidance (CSMA/CA) networks and in carrier sense multiple access with collision detection (CSMA/CD)…
truncatingEmptying a file of existing contents, either automatically when opening a file for writing or explicitly via the truncate function.
truncationThe deletion or omission of a leading or a trailing portion of a string in accordance with specified criteria.
truncation errorIn the representation of a number, the error introduced when one or more digits are dropped.
trunkIn a communications network, a single transmission channel between two points that are switching centers or nodes, or both. 2.