| dick | (noun) obscene terms for penis | Synonyms: cock, pecker, prick, putz, shaft, tool |
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| (noun) someone who is a detective | Synonyms: gumshoe, hawkshaw |
| dickens | (noun) a word used in exclamations of confusion | Synonyms: deuce, devil |
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| dickey | (noun) a man's detachable insert (usually starched) to simulate the front of a shirt | Synonyms: dickie, dicky, shirtfront |
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| (noun) a small third seat in the back of an old-fashioned two-seater | Synonyms: dickey-seat, dickie-seat, dickie, dicky-seat, dicky |
| dickeybird | (noun) small bird; adults talking to children sometimes use these words to refer to small birds | Synonyms: dickey-bird, dicky-bird, dickybird |
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| dickhead | (noun) insulting terms of address for people who are stupid or irritating or ridiculous | Synonyms: asshole, bastard, cocksucker, mother fucker, motherfucker, prick, shit, SOB, son of a bitch, whoreson |
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| dickie | (noun) a man's detachable insert (usually starched) to simulate the front of a shirt | Synonyms: dickey, dicky, shirtfront |
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| (noun) a small third seat in the back of an old-fashioned two-seater | Synonyms: dickey-seat, dickey, dickie-seat, dicky-seat, dicky |
| dicky | (noun) a man's detachable insert (usually starched) to simulate the front of a shirt | Synonyms: dickey, dickie, shirtfront |
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| (noun) a small third seat in the back of an old-fashioned two-seater | Synonyms: dickey-seat, dickey, dickie-seat, dickie, dicky-seat |
| dickybird | (noun) small bird; adults talking to children sometimes use these words to refer to small birds | Synonyms: dickey-bird, dickeybird, dicky-bird |
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| dicloxacillin | (noun) antibacterial (trade name Dynapen) used to treat staphylococcal infections that are resistant to penicillin | Synonyms: Dynapen |
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| dicot | (noun) flowering plant with two cotyledons; the stem grows by deposit on its outside | Synonyms: dicotyledon, exogen, magnoliopsid |
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| dicotyledon | (noun) flowering plant with two cotyledons; the stem grows by deposit on its outside | Synonyms: dicot, exogen, magnoliopsid |
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| dicoumarol | (noun) an anticoagulant drug that has now been largely replaced by warfarin | Synonyms: dicumarol |
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| dictate | (noun) a guiding principle | - |
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| (noun) an authoritative rule | - |
| dictation | (noun) speech intended for reproduction in writing | - |
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| (noun) an authoritative direction or instruction to do something | Synonyms: bid, bidding, command |
| (noun) matter that has been dictated and transcribed; a dictated passage | - |
| dictator | (noun) a ruler who is unconstrained by law | Synonyms: potentate |
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| (noun) a person who behaves in a tyrannical manner | Synonyms: authoritarian |
| (noun) a speaker who dictates to a secretary or a recording machine | - |
| dictatorship | (noun) a form of government in which the ruler is an absolute dictator (not restricted by a constitution or laws or opposition etc.) | Synonyms: absolutism, authoritarianism, Caesarism, despotism, monocracy, one-man rule, shogunate, Stalinism, totalitarianism, tyranny |
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| diction | (noun) the manner in which something is expressed in words | Synonyms: choice of words, phraseology, phrasing, verbiage, wording |
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| (noun) the articulation of speech regarded from the point of view of its intelligibility to the audience | Synonyms: enunciation |
| dictionary | (noun) a reference book containing an alphabetical list of words with information about them | Synonyms: lexicon |
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| dictostylium | (noun) any slime mold of the genus Dictostylium | - |
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| dictum | (noun) an authoritative declaration | Synonyms: pronouncement, say-so |
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| (noun) an opinion voiced by a judge on a point of law not directly bearing on the case in question and therefore not binding | Synonyms: obiter dictum |
| dictyosome | (noun) a netlike structure in the cytoplasm of animal cells (especially in those cells that produce secretions) | Synonyms: Golgi apparatus, Golgi body, Golgi complex |
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| dicumarol | (noun) an anticoagulant drug that has now been largely replaced by warfarin | Synonyms: dicoumarol |
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| dicynodont | (noun) a kind of therapsid | - |
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| didacticism | (noun) communication that is suitable for or intended to be instructive | - |
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| didactics | (noun) the activities of educating or instructing; activities that impart knowledge or skill | Synonyms: education, educational activity, instruction, pedagogy, teaching |
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| didanosine | (noun) an antiviral drug used to combat HIV infection, a reverse transcriptase inhibitor | Synonyms: ddI, DDI, dideoxyinosine |
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| diddley | (noun) a small worthless amount | Synonyms: diddly-shit, diddly-squat, diddly, diddlyshit, diddlysquat, doodly-squat, jack, shit, squat |
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| diddly | (noun) a small worthless amount | Synonyms: diddley, diddly-shit, diddly-squat, diddlyshit, diddlysquat, doodly-squat, jack, shit, squat |
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| diddlyshit | (noun) a small worthless amount | Synonyms: diddley, diddly-shit, diddly-squat, diddly, diddlysquat, doodly-squat, jack, shit, squat |
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| diddlysquat | (noun) a small worthless amount | Synonyms: diddley, diddly-shit, diddly-squat, diddly, diddlyshit, doodly-squat, jack, shit, squat |
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| dideoxycytosine | (noun) an antiviral drug used to combat HIV infection; a nucleoside analog reverse transcriptase inhibitor (NARTI) | Synonyms: ddC, DDC, zalcitabine |
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| dideoxyinosine | (noun) an antiviral drug used to combat HIV infection, a reverse transcriptase inhibitor | Synonyms: ddI, DDI, didanosine |
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| die | (noun) a small cube with 1 to 6 spots on the six faces; used in gambling to generate random numbers | Synonyms: dice |
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| (noun) a device used for shaping metal | - |
| (noun) a cutting tool that is fitted into a diestock and used for cutting male (external) screw threads on screws or bolts or pipes or rods | - |
| dieback | (noun) a disease of plants characterized by the gradual dying of the young shoots starting at the tips and progressing to the larger branches | - |
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| diehard | (noun) one who adheres to traditional views | Synonyms: traditionalist |
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| dielectric | (noun) a material such as glass or porcelain with negligible electrical or thermal conductivity | Synonyms: insulator, nonconductor |
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| dielectrolysis | (noun) the motion of charged particles in a colloid under the influence of an electric field; particles with a positive charge go to the cathode and negative to the anode | Synonyms: cataphoresis, electrophoresis, ionophoresis |
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| diemaker | (noun) someone who makes dies | Synonyms: die-sinker, diesinker |
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| diencephalon | (noun) the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon | Synonyms: betweenbrain, interbrain, thalmencephalon |
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| dieresis | (noun) a diacritical mark (two dots) placed over a vowel to indicate that it does not form a diphthong with an adjacent vowel | Synonyms: diaeresis |
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| diesel | (noun) an internal-combustion engine that burns heavy oil | Synonyms: diesel engine, diesel motor |
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| diesinker | (noun) someone who makes dies | Synonyms: die-sinker, diemaker |
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| diesis | (noun) a character used in printing to indicate a third cross reference or footnote after the asterisk and the dagger have been used | Synonyms: double dagger, double obelisk |
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| diestock | (noun) a device that holds the dies that cut external threads on metal cylinders | - |
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| diestrum | (noun) (of animals having several estrous cycles in one breeding season) a state or interval of sexual inactivity or quiescence between periods of activity | Synonyms: diestrus |
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| diestrus | (noun) (of animals having several estrous cycles in one breeding season) a state or interval of sexual inactivity or quiescence between periods of activity | Synonyms: diestrum |
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| diet | (noun) the act of restricting your food intake (or your intake of particular foods) | Synonyms: dieting |
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| (noun) a prescribed selection of foods | - |
| (noun) the usual food and drink consumed by an organism (person or animal) | - |
| (noun) a legislative assembly in certain countries (e.g., Japan) | - |
| dietary | (noun) a regulated daily food allowance | - |
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| dieter | (noun) a person who diets | - |
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| dietetics | (noun) the scientific study of food preparation and intake | - |
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| diethylmalonylurea | (noun) a barbiturate used as a hypnotic | Synonyms: barbital, barbitone, diethylbarbituric acid, veronal |
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| diethylstilbesterol | (noun) synthetic nonsteroid with the properties of estrogen; formerly used to treat menstrual problems but was found to be associated with vaginal cancers in the daughters of women so treated during pregnancy | Synonyms: DES, stilbesterol |
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| diethylstilbestrol | (noun) a potent estrogen used in medicine and in feed for livestock and poultry | Synonyms: DES, diethylstilboestrol, stilbestrol, stilboestrol |
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| diethylstilboestrol | (noun) a potent estrogen used in medicine and in feed for livestock and poultry | Synonyms: DES, diethylstilbestrol, stilbestrol, stilboestrol |
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| dietician | (noun) a specialist in the study of diet and nutrition | Synonyms: dietitian |
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| dieting | (noun) the act of restricting your food intake (or your intake of particular foods) | Synonyms: diet |
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| dietitian | (noun) a specialist in the study of diet and nutrition | Synonyms: dietician |
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| difference | (noun) the quality of being unlike or dissimilar | - |
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| (noun) a disagreement or argument about something important | Synonyms: conflict, difference of opinion, dispute |
| (noun) a variation that deviates from the standard or norm | Synonyms: departure, deviation, divergence |
| (noun) the number that remains after subtraction; the number that when added to the subtrahend gives the minuend | Synonyms: remainder |
| (noun) a significant change | - |
| differentia | (noun) distinguishing characteristics (especially in different species of a genus) | - |
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| differential | (noun) a bevel gear that permits rotation of two shafts at different speeds; used on the rear axle of automobiles to allow wheels to rotate at different speeds on curves | Synonyms: differential gear |
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| (noun) a quality that differentiates between similar things | - |
| (noun) the result of mathematical differentiation; the instantaneous change of one quantity relative to another; df(x)/dx | Synonyms: derivative, derived function, differential coefficient, first derivative |
| differentiation | (noun) the mathematical process of obtaining the derivative of a function | - |
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| (noun) a discrimination between things as different and distinct on the basis of their characteristics or attributes | Synonyms: distinction |
| (noun) (biology) the structural adaptation of some body part for a particular function | Synonyms: specialisation, specialization |
| differentiator | (noun) a person who (or that which) differentiates | Synonyms: discriminator |
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| difficultness | (noun) the quality of being almost beyond one's ability to deal with and requiring a great effort to achieve a positive result | Synonyms: difficulty |
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| difficulty | (noun) an effort that is inconvenient | Synonyms: trouble |
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| (noun) the quality of being almost beyond one's ability to deal with and requiring a great effort to achieve a positive result | Synonyms: difficultness |
| diffidence | (noun) lack of self-confidence | Synonyms: self-distrust, self-doubt |
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| difflugia | (noun) a protozoan with an ovoid shell of cemented sand grains | - |
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| diffraction | (noun) when light passes sharp edges or goes through narrow slits the rays are deflected and produce fringes of light and dark bands | - |
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| diffuseness | (noun) the spatial property of being spread out over a wide area or through a large volume | - |
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| diffuser | (noun) optical device that distributes the light of a lamp evenly | Synonyms: diffusor |
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| (noun) baffle that distributes sound waves evenly | Synonyms: diffusor |
| diffusion | (noun) the act of dispersing or diffusing something | Synonyms: dispersal, dispersion, dissemination |
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| (noun) the property of being diffused or dispersed | Synonyms: dissemination |
| (noun) the spread of social institutions (and myths and skills) from one society to another | - |
| (noun) (physics) the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration | - |
| diffusor | (noun) optical device that distributes the light of a lamp evenly | Synonyms: diffuser |
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| (noun) baffle that distributes sound waves evenly | Synonyms: diffuser |
| diflunisal | (noun) nonsteroidal anti-inflammatory (trade name Dolobid) used to treat arthritis and other inflammatory conditions | Synonyms: Dolobid |
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| dig | (noun) the act of digging | Synonyms: digging, excavation |
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| (noun) the act of touching someone suddenly with your finger or elbow | Synonyms: jab |
| (noun) a small gouge (as in the cover of a book) | - |
| (noun) an aggressive remark directed at a person like a missile and intended to have a telling effect | Synonyms: barb, gibe, jibe, shaft, shot, slam |
| (noun) the site of an archeological exploration | Synonyms: archeological site, excavation |
| digenesis | (noun) alternation of sexual and asexual generations | Synonyms: metagenesis |
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| digest | (noun) something that is compiled (as into a single book or file) | Synonyms: compilation |
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| (noun) a periodical that summarizes the news | - |
| digester | (noun) autoclave consisting of a vessel in which plant or animal materials are digested | - |
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| digestibility | (noun) the property of being easy to digest | Synonyms: digestibleness |
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| digestibleness | (noun) the property of being easy to digest | Synonyms: digestibility |
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| digestion | (noun) learning and coming to understand ideas and information | - |
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| (noun) the organic process by which food is converted into substances that can be absorbed into the body | - |
| (noun) the process of decomposing organic matter (as in sewage) by bacteria or by chemical action or heat | - |
| digestive | (noun) any substance that promotes digestion | - |
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| digger | (noun) a machine for excavating | Synonyms: excavator, power shovel, shovel |
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| (noun) a laborer who digs | - |
| digging | (noun) the act of digging | Synonyms: dig, excavation |
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| diggings | (noun) temporary living quarters | Synonyms: digs, domiciliation, lodgings, pad |
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| (noun) an excavation for ore or precious stones or for archaeology | Synonyms: digs |
| digit | (noun) a finger or toe in human beings or corresponding body part in other vertebrates | Synonyms: dactyl |
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| (noun) one of the elements that collectively form a system of numeration | Synonyms: figure |
| (noun) the length of breadth of a finger used as a linear measure | Synonyms: finger's breadth, finger, fingerbreadth |
| digitalin | (noun) a powerful cardiac stimulant obtained from foxglove | Synonyms: digitalis, digitalis glycoside |
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| digitalis | (noun) any of several plants of the genus Digitalis | Synonyms: foxglove |
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| (noun) a powerful cardiac stimulant obtained from foxglove | Synonyms: digitalin, digitalis glycoside |
| digitalisation | (noun) the administration of digitalis for the treatment of certain heart disorders | Synonyms: digitalization |
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| digitalization | (noun) the administration of digitalis for the treatment of certain heart disorders | Synonyms: digitalisation |
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| digitigrade | (noun) an animal that walks so that only the toes touch the ground as e.g. dogs and cats and horses | Synonyms: digitigrade mammal |
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| digitisation | (noun) conversion of analog information into digital information | Synonyms: digitization |
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| digitiser | (noun) device for converting analogue signals into digital signals | Synonyms: analog-digital converter, analog-to-digital converter, digitizer |
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| digitization | (noun) conversion of analog information into digital information | Synonyms: digitisation |
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| digitizer | (noun) device for converting analogue signals into digital signals | Synonyms: analog-digital converter, analog-to-digital converter, digitiser |
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| digitoxin | (noun) digitalis preparation used to treat congestive heart failure or cardiac arrhythmia | - |
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| dignitary | (noun) an important or influential (and often overbearing) person | Synonyms: high-up, high muckamuck, panjandrum, very important person, VIP |
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| dignity | (noun) the quality of being worthy of esteem or respect | Synonyms: self-regard, self-respect, self-worth |
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| (noun) formality in bearing and appearance | Synonyms: gravitas, lordliness |
| (noun) high office or rank or station | - |
| digoxin | (noun) digitalis preparation (trade name Lanoxin) used to treat congestive heart failure or cardiac arrhythmia; helps the heart beat more forcefully | Synonyms: Lanoxin |
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| digram | (noun) two successive letters (especially two letters used to represent a single sound: `sh' in `shoe') | Synonyms: digraph |
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| digraph | (noun) two successive letters (especially two letters used to represent a single sound: `sh' in `shoe') | Synonyms: digram |
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| digression | (noun) a turning aside (of your course or attention or concern) | Synonyms: deflection, deflexion, deviation, divagation, diversion |
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| (noun) wandering from the main path of a journey | Synonyms: excursion |
| (noun) a message that departs from the main subject | Synonyms: aside, divagation, excursus, parenthesis |