| diachronic | (adjective) used of the study of a phenomenon (especially language) as it changes through time | Synonyms: historical |
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| diacritic | (adjective) capable of distinguishing | Synonyms: diacritical |
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| (noun) a mark added to a letter to indicate a special pronunciation | Synonyms: diacritical mark |
| diagnostic | (adjective) concerned with diagnosis; used for furthering diagnosis | - |
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| (adjective) characteristic or indicative of a disease | Synonyms: symptomatic |
| diagrammatic | (adjective) shown or represented by diagrams | Synonyms: diagrammatical |
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| dialectic | (adjective) of or relating to or employing dialectic | Synonyms: dialectical |
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| (noun) any formal system of reasoning that arrives at the truth by the exchange of logical arguments | - |
| (noun) a contradiction of ideas that serves as the determining factor in their interaction | - |
| diamagnetic | (adjective) relating to or exhibiting diamagnetism; slightly repelled by a magnet | - |
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| diametric | (adjective) related to or along a diameter | Synonyms: diametral, diametrical |
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| (adjective) characterized by opposite extremes; completely opposed | Synonyms: diametrical, opposite, polar |
| dianoetic | (adjective) proceeding to a conclusion by reason or argument rather than intuition | Synonyms: discursive |
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| diaphoretic | (adjective) inducing perspiration | Synonyms: sudorific |
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| (noun) used to produce perspiration | - |
| diarrheic | (adjective) of or relating to diarrhea | Synonyms: diarrheal, diarrhetic, diarrhoeal, diarrhoeic, diarrhoetic |
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| diarrhetic | (adjective) of or relating to diarrhea | Synonyms: diarrheal, diarrheic, diarrhoeal, diarrhoeic, diarrhoetic |
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| diarrhoeic | (adjective) of or relating to diarrhea | Synonyms: diarrheal, diarrheic, diarrhetic, diarrhoeal, diarrhoetic |
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| diarrhoetic | (adjective) of or relating to diarrhea | Synonyms: diarrheal, diarrheic, diarrhetic, diarrhoeal, diarrhoeic |
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| diastolic | (adjective) of or relating to a diastole or happening during a diastole | - |
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| diatomic | (adjective) of or relating to a molecule made up of two atoms | - |
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| diatonic | (adjective) based on the standard major or minor scales consisting of 5 tones and 2 semitones without modulation by accidentals | - |
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| (adjective) based on or using the five tones and two semitones of the major or minor scales of western music | - |
| dicarboxylic | (adjective) containing two carboxyls per molecule | - |
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| dichromatic | (adjective) of or relating to dichromatism | - |
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| (adjective) having two colors | Synonyms: bichrome, bicolor, bicolored, bicolour, bicoloured |
| didactic | (adjective) instructive (especially excessively) | Synonyms: didactical |
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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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| dietetic | (adjective) of or relating to the diet | Synonyms: dietary, dietetical |
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| dimorphic | (adjective) occurring or existing in two different forms | Synonyms: dimorphous |
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| diplomatic | (adjective) using or marked by tact in dealing with sensitive matters or people | Synonyms: diplomatical |
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| (adjective) relating to or characteristic of diplomacy | - |
| dislogistic | (adjective) expressing disapproval | Synonyms: dyslogistic, pejorative |
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| disyllabic | (adjective) having or characterized by or consisting of two syllables | - |
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| dithyrambic | (adjective) of or in the manner of a dithyramb | - |
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| diuretic | (noun) any substance that tends to increase the flow of urine, which causes the body to get rid of excess water | Synonyms: diuretic drug, water pill |
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| dizygotic | (adjective) derived from two separately fertilized eggs | Synonyms: dizygous |
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| dogmatic | (adjective) relating to or involving dogma | - |
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| (adjective) of or pertaining to or characteristic of a doctrine or code of beliefs accepted as authoritative | - |
| (adjective) characterized by assertion of unproved or unprovable principles | Synonyms: dogmatical |
| dolichocephalic | (adjective) having a relatively long head with a cephalic index of under 75 | Synonyms: dolichocranial, dolichocranic |
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| (noun) an adult with a long narrow head | - |
| dolichocranic | (adjective) having a relatively long head with a cephalic index of under 75 | Synonyms: dolichocephalic, dolichocranial |
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| dolomitic | (adjective) relating to or consisting of dolomite | - |
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| domestic | (adjective) of concern to or concerning the internal affairs of a nation | - |
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| (adjective) of or involving the home or family | - |
| (adjective) of or relating to the home | - |
| (adjective) produced in a particular country | - |
| (adjective) converted or adapted to domestic use | Synonyms: domesticated |
| (noun) a servant who is paid to perform menial tasks around the household | Synonyms: domestic help, house servant |
| doric | (adjective) of or pertaining to the Doric style of architecture | - |
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| dramatic | (adjective) suitable to or characteristic of drama | - |
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| (adjective) used of a singer or singing voice that is marked by power and expressiveness and a histrionic or theatrical style | - |
| (adjective) pertaining to or characteristic of drama | - |
| (adjective) sensational in appearance or thrilling in effect | Synonyms: spectacular, striking |
| dramaturgic | (adjective) relating to the technical aspects of drama | Synonyms: dramaturgical |
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| drastic | (adjective) forceful and extreme and rigorous | - |
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| dualistic | (adjective) of or relating to the philosophical doctrine of dualism | Synonyms: Manichaean |
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| dyadic | (adjective) of or relating to a dyad or based on two | - |
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| dynamic | (adjective) characterized by action or forcefulness or force of personality | Synonyms: dynamical |
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| (adjective) (used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')) expressing action rather than a state of being | Synonyms: active |
| (adjective) of or relating to dynamics | - |
| (noun) an efficient incentive | Synonyms: moral force |
| dynastic | (adjective) of or relating to or characteristic of a dynasty | - |
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| dysgenic | (adjective) pertaining to or causing degeneration in the offspring produced | Synonyms: cacogenic |
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| dyslectic | (adjective) having impaired ability to comprehend written words usually associated with a neurologic disorder | Synonyms: dyslexic |
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| (noun) a person who has dyslexia | Synonyms: dyslexic |
| dyslexic | (adjective) of or relating to or symptomatic of dyslexia | - |
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| (adjective) having impaired ability to comprehend written words usually associated with a neurologic disorder | Synonyms: dyslectic |
| (noun) a person who has dyslexia | Synonyms: dyslectic |
| dyslogistic | (adjective) expressing disapproval | Synonyms: dislogistic, pejorative |
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| dyspeptic | (adjective) irritable as if suffering from indigestion | Synonyms: atrabilious, bilious, liverish |
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| (adjective) suffering from dyspepsia | - |
| (noun) a person suffering from indigestion | - |
| dysphemistic | (adjective) of or the nature of dysphemism | - |
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| dysphoric | (adjective) generalized feeling of distress | Synonyms: distressed, unhappy |
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| dysplastic | (adjective) relating to or evidencing dysplasia | - |
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| dyspneic | (adjective) not breathing or able to breathe except with difficulty | Synonyms: breathless, dyspneal, dyspnoeal, dyspnoeic |
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| dyspnoeic | (adjective) not breathing or able to breathe except with difficulty | Synonyms: breathless, dyspneal, dyspneic, dyspnoeal |
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| eccentric | (adjective) not having a common center; not concentric | Synonyms: nonconcentric |
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| (adjective) conspicuously or grossly unconventional or unusual | Synonyms: bizarre, flakey, flaky, freakish, freaky, gonzo, off-the-wall, outlandish, outre |
| (noun) a person with an unusual or odd personality | Synonyms: eccentric person, flake, geek, oddball |
| (noun) a person of a specified kind (usually with many eccentricities) | Synonyms: case, character, type |
| ecclesiastic | (adjective) of or associated with a church (especially a Christian Church) | Synonyms: ecclesiastical |
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| (noun) a clergyman or other person in religious orders | Synonyms: churchman, cleric, divine |
| ecdemic | (adjective) of or relating to a disease that originates outside the locality in which it occurs | - |
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| echoic | (adjective) (of words) formed in imitation of a natural sound | Synonyms: imitative, onomatopoeic, onomatopoeical, onomatopoetic |
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| (adjective) like or characteristic of an echo | Synonyms: echolike |
| eclectic | (adjective) selecting what seems best of various styles or ideas | - |
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| (noun) someone who selects according to the eclectic method | Synonyms: eclecticist |
| ecliptic | (noun) the great circle representing the apparent annual path of the sun; the plane of the Earth's orbit around the sun; makes an angle of about 23 degrees with the equator | - |
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| ecologic | (adjective) of or relating to the science of ecology | Synonyms: bionomic, bionomical, ecological |
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| (adjective) characterized by the interdependence of living organisms in an environment | Synonyms: ecological |
| econometric | (adjective) of or relating to econometrics | - |
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| economic | (adjective) of or relating to the science of economics | - |
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| (adjective) of or relating to an economy, the system of production and management of material wealth | Synonyms: economical |
| (adjective) using the minimum of time or resources necessary for effectiveness | Synonyms: economical |
| (adjective) financially rewarding | - |
| (adjective) concerned with worldly necessities of life (especially money) | - |
| ecstatic | (adjective) feeling great rapture or delight | Synonyms: enraptured, rapt, rapturous, rhapsodic |
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| ectodermic | (adjective) of or relating to the ectoderm | Synonyms: ectodermal |
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| ectomorphic | (adjective) having a build with little fat or muscle but with long limbs | - |
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| ectopic | (adjective) exhibiting ectopia | - |
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| ectothermic | (adjective) of animals except birds and mammals; having body temperature that varies with the environment | Synonyms: heterothermic, poikilothermic, poikilothermous |
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| ecumenic | (adjective) concerned with promoting unity among churches or religions | Synonyms: ecumenical, oecumenic, oecumenical |
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| egocentric | (adjective) concerned chiefly or only with yourself and your advantage to the exclusion of others | Synonyms: egoistic, egoistical, self-centered, self-centred, self-seeking, self-serving, selfish |
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| (noun) a self-centered person with little regard for others | Synonyms: egoist |
| egoistic | (adjective) concerned chiefly or only with yourself and your advantage to the exclusion of others | Synonyms: egocentric, egoistical, self-centered, self-centred, self-seeking, self-serving, selfish |
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| egotistic | (adjective) characteristic of false pride; having an exaggerated sense of self-importance | Synonyms: conceited, egotistical, self-conceited, swollen-headed, swollen, vain |
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| (adjective) characteristic of those having an inflated idea of their own importance | Synonyms: egotistical, narcissistic, self-loving |
| eidetic | (adjective) of visual imagery of almost photographic accuracy | - |
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| elastic | (adjective) capable of resuming original shape after stretching or compression; springy | - |
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| (adjective) able to adjust readily to different conditions | Synonyms: flexible, pliable, pliant |
| (noun) a fabric made of yarns containing an elastic material | - |
| (noun) a narrow band of elastic rubber used to hold things (such as papers) together | Synonyms: elastic band, rubber band |
| electric | (adjective) using or providing or producing or transmitting or operated by electricity | Synonyms: electrical |
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| (adjective) affected by emotion as if by electricity; thrilling | Synonyms: galvanic, galvanising, galvanizing |
| (adjective) (of a situation) exceptionally tense | - |
| (noun) a car that is powered by electricity | Synonyms: electric automobile, electric car |
| electrocardiographic | (adjective) of or relating to an electrocardiograph | - |
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| electroencephalographic | (adjective) of or relating to an electroencephalograph | - |
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| electrolytic | (adjective) of or relating to or containing an electrolyte | - |
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| (adjective) of or concerned with or produced by electrolysis | - |
| (noun) a fixed capacitor consisting of two electrodes separated by an electrolyte | Synonyms: electrolytic capacitor, electrolytic condenser |
| electromagnetic | (adjective) pertaining to or exhibiting magnetism produced by electric charge in motion | - |
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| electronic | (adjective) of or relating to electronics; concerned with or using devices that operate on principles governing the behavior of electrons | - |
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| (adjective) of or concerned with electrons | - |
| electrophoretic | (adjective) of or relating to electrophoresis | Synonyms: cataphoretic |
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| electrostatic | (adjective) concerned with or producing or caused by static electricity | Synonyms: static |
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| elliptic | (adjective) characterized by extreme economy of expression or omission of superfluous elements | Synonyms: elliptical |
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| (adjective) rounded like an egg | Synonyms: egg-shaped, elliptical, oval-shaped, oval, ovate, oviform, ovoid, prolate |
| (adjective) (of a leaf shape) in the form of an ellipse | - |
| emblematic | (adjective) serving as a visible symbol for something abstract | Synonyms: emblematical, symbolic, symbolical |
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| (adjective) being or serving as an illustration of a type | Synonyms: exemplary, typic |
| embolic | (adjective) of or relating to an embolism or embolus | - |
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| embryologic | (adjective) of an organism prior to birth or hatching | Synonyms: embryonal, embryonic |
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| embryonic | (adjective) in an early stage of development | Synonyms: embryotic |
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| (adjective) of an organism prior to birth or hatching | Synonyms: embryologic, embryonal |
| embryotic | (adjective) in an early stage of development | Synonyms: embryonic |
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| emetic | (noun) a medicine that induces nausea and vomiting | Synonyms: nauseant, vomit, vomitive |
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| emmetropic | (adjective) of or relating to the normal condition of the eye in which visual images are in clear focus on the retina | - |
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| empathetic | (adjective) showing empathy or ready comprehension of others' states | Synonyms: empathic |
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| empathic | (adjective) showing empathy or ready comprehension of others' states | Synonyms: empathetic |
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| emphatic | (adjective) forceful and definite in expression or action | Synonyms: forceful |
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| (adjective) sudden and strong | Synonyms: exclamatory |
| (adjective) spoken with emphasis | Synonyms: emphasised, emphasized |
| empiric | (adjective) derived from experiment and observation rather than theory | Synonyms: empirical |
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| (adjective) relying on medical quackery | Synonyms: empirical |
| enatic | (adjective) related on the mother's side | Synonyms: enate, maternal |
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| encaustic | (noun) a paint consisting of pigment mixed with melted beeswax; it is fixed with heat after application | - |
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| encomiastic | (adjective) formally expressing praise | Synonyms: eulogistic, panegyric, panegyrical |
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| encyclopaedic | (adjective) comprehensive in scope or content (as an encyclopedia) | Synonyms: encyclopedic |
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| encyclopedic | (adjective) comprehensive in scope or content (as an encyclopedia) | Synonyms: encyclopaedic |
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| endemic | (adjective) of or relating to a disease (or anything resembling a disease) constantly present to greater or lesser extent in a particular locality | Synonyms: endemical |
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| (adjective) native to or confined to a certain region | - |
| (adjective) originating where it is found | Synonyms: autochthonal, autochthonic, autochthonous, indigenous |
| (noun) a plant or animal that is native to a certain limited area | - |
| (noun) a disease that is constantly present to a greater or lesser degree in people of a certain class or in people living in a particular location | Synonyms: endemic disease |
| endergonic | (adjective) (biochemistry) of a process accompanied by or requiring the absorption of energy; the products of the process are of greater free energy than the reactants | - |
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| endermatic | (adjective) acting by absorption through the skin | Synonyms: endermic |
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| endermic | (adjective) acting by absorption through the skin | Synonyms: endermatic |
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