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Glossary · Nouns · D

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TermTypeDefinitionClassificationsUpdated
Doodianounany fern of the genus Doodia having pinnate fronds with sharply dentate pinnaeverifiedMay 18, 2026
Doodlebugnouna small jet-propelled winged missile that carries a bombverifiedMay 18, 2026
Doodly-Squatnouna small worthless amountverifiedMay 18, 2026
Doofusnouna person who is acting foolishly in the momentverifiedMay 18, 2026
Doohickeynounsomething unspecified whose name is either forgotten or not knownverifiedMay 18, 2026
Doojiggernounsomething unspecified whose name is either forgotten or not knownverifiedMay 18, 2026
Doomsdaynoun(New Testament) day at the end of time following Armageddon when God will decree the fates of all individual humans according to the good and evil of their earthly livesverifiedMay 18, 2026
Doornouna swinging or sliding barrier that will close the entrance to a room or building or vehicleverifiedMay 18, 2026
Door GuardnounMWEsomeone who guards an entranceverifiedMay 18, 2026
Door LatchnounMWEspring-loaded doorlock that can only be opened from the outside with a keyverifiedMay 18, 2026
Door PrizenounMWEtickets are passed out at the entrance to a dance or party or other social function and a prize is awarded to the holder of the winning ticketverifiedMay 18, 2026
Doorbellnouna push button at an outer door that gives a ringing or buzzing signal when pushedverifiedMay 18, 2026
Doorcasenounthe frame that supports a doorverifiedMay 18, 2026
Doorframenounthe frame that supports a doorverifiedMay 18, 2026
Doorhandlenouna knob used to release the catch when opening a door (often called `doorhandle' in Great Britain)verifiedMay 18, 2026
Doorjambnouna jamb for a doorverifiedMay 18, 2026
Doorkeepernounthe lowest of the minor Holy Orders in the unreformed Western Church but now suppressed by the Roman Catholic ChurchverifiedMay 18, 2026
Doorknobnouna knob used to release the catch when opening a door (often called `doorhandle' in Great Britain)verifiedMay 18, 2026
Doorknockernouna device, usually metal and ornamental, attached by a hinge to a door, used to alert the presence of guestsverifiedMay 18, 2026
Doorlocknouna lock on an exterior doorverifiedMay 18, 2026
Doormannounsomeone who guards an entranceverifiedMay 18, 2026
Doormatnouna mat placed outside an exterior door for wiping the shoes before enteringverifiedMay 18, 2026
Doornailnouna nail with a large headverifiedMay 18, 2026
Doorplatenouna nameplate fastened to a doorverifiedMay 18, 2026
Doorpostnouna jamb for a doorverifiedMay 18, 2026
Doorsillnounthe sill of a doorverifiedMay 18, 2026
Doorstepnounthe sill of a doorverifiedMay 18, 2026
Doorstopnouna stop that keeps open doors from movingverifiedMay 18, 2026
Doorstoppernouna stop that keeps open doors from movingverifiedMay 18, 2026
Doorwaynounthe entrance (the space in a wall) through which you enter or leave a room or buildingverifiedMay 18, 2026
Dooryardnouna yard outside the front or rear door of a houseverifiedMay 18, 2026
Dopanounamino acid that is formed in the liver and converted into dopamine in the brainverifiedMay 18, 2026
Dopaminenouna monoamine neurotransmitter found in the brain and essential for the normal functioning of the central nervous systemverifiedMay 18, 2026
Dope SheetnounMWEa racing publication giving information on horses and the outcomes of horse racesverifiedMay 18, 2026
Doppelgangernouna ghostly double of a living person that haunts its living counterpartverifiedMay 18, 2026
Doppelzentnernouna unit of weight equal to 100 kilogramsverifiedMay 18, 2026
DorbeetlenounOld World dung beetle that flies with a droning soundverifiedMay 18, 2026
Dormnouna college or university building containing living quarters for studentsverifiedMay 18, 2026
Dorm RoomnounMWEa large sleeping room containing several bedsverifiedMay 18, 2026
Dormancynouna state of quiet (but possibly temporary) inactionverifiedMay 18, 2026
Dormant AccountnounMWEa savings account showing no activity (other than posting interest) for some specified periodverifiedMay 18, 2026
Dormernouna gabled extension built out from a sloping roof to accommodate a vertical windowverifiedMay 18, 2026
Dormer WindownounMWEa gabled extension built out from a sloping roof to accommodate a vertical windowverifiedMay 18, 2026
Dormitorynouna college or university building containing living quarters for studentsverifiedMay 18, 2026
Dormitory RoomnounMWEa large sleeping room containing several bedsverifiedMay 18, 2026
Dormousenounsmall furry-tailed squirrel-like Old World rodent that becomes torpid in cold weatherverifiedMay 18, 2026
Dorpnouna small, provincial village or townverifiedMay 18, 2026
Dorsal FinnounMWEunpaired median fin on the backs of fishes and some other aquatic vertebrates that help to maintain balanceverifiedMay 18, 2026
Dorsal HornnounMWEone of the two roots of a spinal nerve that passes dorsally to the spinal cord and that consists of sensory fibersverifiedMay 18, 2026
Dorsal RootnounMWEone of the two roots of a spinal nerve that passes dorsally to the spinal cord and that consists of sensory fibersverifiedMay 18, 2026
Dorsal Scapular VeinnounMWEvein that is a tributary of the subclavian vein or external jugular vein and accompanies the descending scapular arteryverifiedMay 18, 2026
Dorsal VertebranounMWEone of 12 vertebrae in the human vertebral columnverifiedMay 18, 2026
Dorsiflexionnounthe act of bending backward (of the body or a body part)verifiedMay 18, 2026
Dorsumnounthe back of the body of a vertebrate or any analogous surface (as the upper or outer surface of an organ or appendage or part)verifiedMay 18, 2026
Dorynouna small boat of shallow draft with cross thwarts for seats and rowlocks for oars with which it is propelledverifiedMay 18, 2026
Dosagenounthe quantity of an active agent (substance or radiation) taken in or absorbed at any one timeverifiedMay 18, 2026
Dose RatenounMWEthe quantity of radiation absorbed per unit timeverifiedMay 18, 2026
Dosemeternouna measuring instrument for measuring doses of ionizing radiation (X-rays or radioactivity)verifiedMay 18, 2026
Dosimeternouna measuring instrument for measuring doses of ionizing radiation (X-rays or radioactivity)verifiedMay 18, 2026
Dosimetrynounmeasuring the dose of radiation emitted by a radioactive sourceverifiedMay 18, 2026
Dossalnounan ornamental hanging of rich fabric hung behind the altar of a church or at the sides of a chancelverifiedMay 18, 2026
Dosselnounan ornamental hanging of rich fabric hung behind the altar of a church or at the sides of a chancelverifiedMay 18, 2026
Dossernounsomeone who sleeps in any convenient placeverifiedMay 18, 2026
Dosshousenouna cheap lodging houseverifiedMay 18, 2026
Dossiernouna collection of papers containing detailed information about a particular person or subject (usually a person's record)verifiedMay 18, 2026
Dot Com CompanynounMWEa company that operates its business primarily on the internet using a URL that ends in `.com'verifiedMay 18, 2026
Dot MatrixnounMWEa rectangular matrix of dots from which written characters can be formedverifiedMay 18, 2026
Dot Matrix PrinternounMWEa printer that represents each character as a pattern of dots from a dot matrixverifiedMay 18, 2026
Dot PrinternounMWEa printer that represents each character as a pattern of dots from a dot matrixverifiedMay 18, 2026
Dot ProductnounMWEa real number (a scalar) that is the product of two vectorsverifiedMay 18, 2026
Dotagenounmental infirmity as a consequence of old ageverifiedMay 18, 2026
Dotardnounan oldster in his dotageverifiedMay 18, 2026
Dotrelnounrare plover of upland areas of EurasiaverifiedMay 18, 2026
Dotted GayfeathernounMWEherb with many stems bearing narrow slender wands of crowded rose-lavender flowersverifiedMay 18, 2026
Dotted LinenounMWEa line made up of dots or dashesverifiedMay 18, 2026
Dotterelnounrare plover of upland areas of EurasiaverifiedMay 18, 2026
Dottlenounthe residue of partially burnt tobacco left caked in the bowl of a pipe after smokingverifiedMay 18, 2026
Double AgentnounMWEa spy who works for two mutually antagonistic countriesverifiedMay 18, 2026
Double BarnounMWEnotation marking the end of principal parts of a musical compositionverifiedMay 18, 2026
Double BassnounMWElargest and lowest member of the violin familyverifiedMay 18, 2026
Double BassoonnounMWEthe bassoon that is the largest instrument in the oboe familyverifiedMay 18, 2026
Double BednounMWEa bed wide enough to accommodate two sleepersverifiedMay 18, 2026
Double BindnounMWE(psychology) an unresolvable dilemmaverifiedMay 18, 2026
Double BlindnounMWEa test procedure in which the identity of those receiving the intervention is concealed from both the administrators and the subjects until after the test is completedverifiedMay 18, 2026
Double BoilernounMWEtwo saucepans, one fitting inside the otherverifiedMay 18, 2026
Double BondnounMWEa covalent bond in which two pairs of electrons are shared between two atomsverifiedMay 18, 2026
Double ChecknounMWEsomething that checks the correctness of a previous checkverifiedMay 18, 2026
Double ChinnounMWEa fold of fatty tissue under the chinverifiedMay 18, 2026
Double ClinchnounMWEa clinch with two loopsverifiedMay 18, 2026
Double CreamnounMWEfresh soft French cheese containing at least 60% fatverifiedMay 18, 2026
Double CremenounMWEcream with a fat content of 48% or moreverifiedMay 18, 2026
Double CrochetnounMWEa kind of crochet stitchverifiedMay 18, 2026
Double CrossnounMWEan act of betrayalverifiedMay 18, 2026
Double DaggernounMWEa character used in printing to indicate a cross reference or footnoteverifiedMay 18, 2026
Double DamagesnounMWEtwice the amount that a court would normally find the injured party entitled toverifiedMay 18, 2026
Double DatenounMWEa date in which two couples participateverifiedMay 18, 2026
Double DecompositionnounMWEa chemical reaction between two compounds in which parts of each are interchanged to form two new compounds (AB+CD=AD+CB)verifiedMay 18, 2026
Double Decomposition ReactionnounMWEa chemical reaction between two compounds in which parts of each are interchanged to form two new compounds (AB+CD=AD+CB)verifiedMay 18, 2026
Double DigitnounMWEa two-digit integerverifiedMay 18, 2026
Double DippernounMWEsomeone who draws two incomes from the government (usually by combining a salary and a pension)verifiedMay 18, 2026