| dialectic | (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 | - |
| dialectician | (noun) a logician skilled in dialectic | - |
|---|
| dialectics | (noun) a rationale for dialectical materialism based on change through the conflict of opposing forces | - |
|---|
| dialectology | (noun) the branch of philology that is devoted to the study of dialects | - |
|---|
| dialog | (noun) the lines spoken by characters in drama or fiction | Synonyms: dialogue |
|---|
| (noun) a conversation between two persons | Synonyms: dialogue, duologue |
| (noun) a literary composition in the form of a conversation between two people | Synonyms: dialogue |
| dialogism | (noun) the use in a text of different tones or viewpoints, whose interaction or contradiction is important to the text's interpretation. | - |
|---|
| dialogue | (noun) the lines spoken by characters in drama or fiction | Synonyms: dialog |
|---|
| (noun) a conversation between two persons | Synonyms: dialog, duologue |
| (noun) a literary composition in the form of a conversation between two people | Synonyms: dialog |
| (noun) a discussion intended to produce an agreement | Synonyms: negotiation, talks |
| dialysis | (noun) separation of substances in solution by means of their unequal diffusion through semipermeable membranes | - |
|---|
| dialyzer | (noun) a medical instrument for separating substances in solution by unequal diffusion through semipermeable membranes | Synonyms: dialysis machine |
|---|
| diencephalon | (noun) the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon | Synonyms: betweenbrain, interbrain, thalmencephalon |
|---|
| diethylmalonylurea | (noun) a barbiturate used as a hypnotic | Synonyms: barbital, barbitone, diethylbarbituric acid, veronal |
|---|
| 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 |
|---|
| (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 |
| diflunisal | (noun) nonsteroidal anti-inflammatory (trade name Dolobid) used to treat arthritis and other inflammatory conditions | Synonyms: Dolobid |
|---|
| digitalin | (noun) a powerful cardiac stimulant obtained from foxglove | Synonyms: digitalis, digitalis glycoside |
|---|
| digitalis | (noun) any of several plants of the genus Digitalis | Synonyms: foxglove |
|---|
| (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 |
|---|
| digitalization | (noun) the administration of digitalis for the treatment of certain heart disorders | Synonyms: digitalisation |
|---|
| dihydroxyphenylalanine | (noun) amino acid that is formed in the liver and converted into dopamine in the brain | Synonyms: dopa |
|---|
| dillydallier | (noun) someone who wastes time | Synonyms: dallier, dilly-dallier, lounger, mope |
|---|
| dimensionality | (noun) the spatial property of having dimensions | - |
|---|
| directionality | (noun) the property of a microphone or antenna of being more sensitive in one direction than in another | Synonyms: directivity |
|---|
| (noun) the property of being directional or maintaining a direction | - |
| disapproval | (noun) the act of disapproving or condemning | - |
|---|
| (noun) an inclination to withhold approval from some person or group | Synonyms: disfavor, disfavour, dislike |
| (noun) the expression of disapproval | - |
| (noun) a feeling of disliking something or what someone is doing | - |
| disavowal | (noun) denial of any connection with or knowledge of | Synonyms: disclaimer |
|---|
| disbursal | (noun) the act of spending or disbursing money | Synonyms: disbursement, outlay, spending |
|---|
| (noun) amounts paid for goods and services that may be currently tax deductible (as opposed to capital expenditures) | Synonyms: disbursement, expense |
| disloyalty | (noun) the quality of being disloyal | - |
|---|
| dismissal | (noun) the termination of someone's employment (leaving them free to depart) | Synonyms: discharge, dismission, firing, liberation, release, sack, sacking |
|---|
| (noun) a judgment disposing of the matter without a trial | Synonyms: judgement of dismissal, judgment of dismissal |
| (noun) official notice that you have been fired from your job | Synonyms: dismission, pink slip |
| (noun) permission to go; the sending away of someone | - |
| dispersal | (noun) the act of dispersing or diffusing something | Synonyms: diffusion, dispersion, dissemination |
|---|
| disposal | (noun) the act or means of getting rid of something | Synonyms: disposition |
|---|
| (noun) a method of tending to or managing the affairs of some group of people (especially the group's business affairs) | Synonyms: administration |
| (noun) a kitchen appliance for disposing of garbage | Synonyms: electric pig, garbage disposal |
| (noun) the power to use something or someone | - |
| disqualification | (noun) the act of preventing someone from participating by finding them unqualified | - |
|---|
| (noun) unfitness that bars you from participation | - |
| dolichocephalic | (noun) an adult with a long narrow head | - |
|---|
| dolichocephalism | (noun) the quality of being dolichocephalic | Synonyms: dolichocephaly |
|---|
| dolichocephaly | (noun) the quality of being dolichocephalic | Synonyms: dolichocephalism |
|---|
| dossal | (noun) an ornamental hanging of rich fabric hung behind the altar of a church or at the sides of a chancel | Synonyms: dossel |
|---|
| downfall | (noun) a sudden decline in strength or number or importance | Synonyms: fall |
|---|
| (noun) failure that results in a loss of position or reputation | Synonyms: ruin, ruination |
| (noun) the falling to earth of any form of water (rain or snow or hail or sleet or mist) | Synonyms: precipitation |
| drywall | (noun) a wide flat board used to cover walls or partitions; made from plaster or wood pulp or other materials and used primarily to form the interior walls of houses | Synonyms: dry wall, wallboard |
|---|
| dualism | (noun) the doctrine that reality consists of two basic opposing elements, often taken to be mind and matter (or mind and body), or good and evil | - |
|---|
| dualist | (noun) an adherent of dualism | - |
|---|
| duality | (noun) (physics) the property of matter and electromagnetic radiation that is characterized by the fact that some properties can be explained best by wave theory and others by particle theory | Synonyms: wave-particle duality |
|---|
| (noun) (geometry) the interchangeability of the roles of points and planes in the theorems of projective geometry | - |
| (noun) being twofold; a classification into two opposed parts or subclasses | Synonyms: dichotomy |
| duodecimal | (noun) one part in twelve equal parts | Synonyms: one-twelfth, twelfth, twelfth part |
|---|
| dyscalculia | (noun) impaired ability to learn grade-appropriate mathematics | - |
|---|
| dysfunctionality | (noun) The condition of functioning incorrectly or abnormally. | - |
|---|
| earthball | (noun) any of various fungi of the genus Scleroderma having hard-skinned subterranean fruiting bodies resembling truffles | Synonyms: false truffle, hard-skinned puffball, puffball |
|---|
| echoencephalogram | (noun) a graphical image of the brain produced by an echoencephalograph | - |
|---|
| echoencephalograph | (noun) a sonograph that creates an image of the brain and its abnormalities | - |
|---|
| echoencephalography | (noun) a noninvasive diagnostic procedure that uses ultrasound to study the anatomy of the brain | - |
|---|
| echolalia | (noun) (psychiatry) mechanical and meaningless repetition of the words of another person (as in schizophrenia) | - |
|---|
| (noun) an infant's repetition of sounds uttered by others | - |
| ecumenicalism | (noun) (Christianity) the doctrine of the ecumenical movement that promotes cooperation and better understanding among different religious denominations: aimed at universal Christian unity | Synonyms: ecumenicism, ecumenism |
|---|
| editorial | (noun) an article giving opinions or perspectives | Synonyms: column, newspaper column |
|---|
| editorialist | (noun) a journalist who writes editorials | Synonyms: columnist |
|---|
| educationalist | (noun) a specialist in the theory of education | Synonyms: educationist |
|---|
| effectuality | (noun) power to be effective; the quality of being able to bring about an effect | Synonyms: effectiveness, effectivity, effectualness |
|---|
| effectualness | (noun) power to be effective; the quality of being able to bring about an effect | Synonyms: effectiveness, effectivity, effectuality |
|---|
| egalitarian | (noun) a person who believes in the equality of all people | Synonyms: equalitarian |
|---|
| egalitarianism | (noun) the doctrine of the equality of mankind and the desirability of political and economic and social equality | Synonyms: equalitarianism |
|---|
| egalite | (noun) social and political equality | Synonyms: egality |
|---|
| egality | (noun) social and political equality | Synonyms: egalite |
|---|
| eigenvalue | (noun) (mathematics) any number such that a given square matrix minus that number times the identity matrix has a zero determinant | Synonyms: characteristic root of a square matrix, eigenvalue of a matrix, eigenvalue of a square matrix |
|---|
| electroencephalogram | (noun) a graphical record of electrical activity of the brain; produced by an electroencephalograph | Synonyms: EEG, encephalogram |
|---|
| electroencephalograph | (noun) medical instrument that records electric currents generated by the brain | - |
|---|
| embalmer | (noun) a mortician who treats corpses with preservatives | - |
|---|
| embalmment | (noun) preservation (of a dead body) by treating with balsams and drugs and other chemicals | - |
|---|
| emerald | (noun) the green color of an emerald | - |
|---|
| (noun) a transparent piece of emerald that has been cut and polished and is valued as a precious gem | - |
| (noun) a green transparent form of beryl; highly valued as a gemstone | - |
| emotionalism | (noun) emotional nature or quality | Synonyms: emotionality |
|---|
| emotionality | (noun) emotional nature or quality | Synonyms: emotionalism |
|---|
| enalapril | (noun) an ACE inhibitor (trade name Vasotec) that blocks the formation of angiotensin in the kidney and so results in vasodilation; administered after heart attacks | Synonyms: Vasotec |
|---|
| enallage | (noun) a substitution of part of speech or gender or number or tense etc. (e.g., editorial `we' for `I') | - |
|---|
| encephalartos | (noun) any of numerous cycads of the genus Encephalartos having stout cylindrical trunks and a terminal crown of long often spiny pinnate leaves | - |
|---|
| encephalitis | (noun) inflammation of the brain usually caused by a virus; symptoms include headache and neck pain and drowsiness and nausea and fever (`phrenitis' is no longer in scientific use) | Synonyms: cephalitis, phrenitis |
|---|
| encephalocele | (noun) protrusion of brain tissue through a congenital fissure in the skull | - |
|---|
| encephalogram | (noun) an X ray of the brain made by replacing spinal fluid with a gas (usually oxygen) to improve contrast | Synonyms: pneumoencephalogram |
|---|
| (noun) a graphical record of electrical activity of the brain; produced by an electroencephalograph | Synonyms: EEG, electroencephalogram |
| encephalograph | (noun) Any apparatus used to produce an encephalogram by recording electric currents generated by the brain. | - |
|---|
| encephalography | (noun) roentgenography of the brain after spinal fluid has been replaced by a gas (usually oxygen); produces an encephalogram | - |
|---|
| encephalomeningitis | (noun) inflammation of the brain and spinal cord and their meninges | Synonyms: cerebromeningitis, meningoencephalitis |
|---|
| encephalomyelitis | (noun) inflammation of the brain and spinal cord | - |
|---|
| encephalon | (noun) that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord | Synonyms: brain |
|---|
| encephalopathy | (noun) any disorder or disease of the brain | Synonyms: brain disease, brain disorder |
|---|
| encyclical | (noun) a letter from the pope sent to all Roman Catholic bishops throughout the world | Synonyms: encyclical letter |
|---|
| enkephalin | (noun) an endorphin having opiate qualities that occurs in the brain and spinal cord and elsewhere | - |
|---|
| enthalpy | (noun) (thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure | Synonyms: H, heat content, total heat |
|---|
| enthrallment | (noun) a feeling of great liking for something wonderful and unusual | Synonyms: captivation, enchantment, fascination |
|---|
| environmentalism | (noun) the activity of protecting the environment from pollution or destruction | - |
|---|
| (noun) the philosophical doctrine that environment is more important than heredity in determining intellectual growth | - |
| environmentalist | (noun) someone who works to protect the environment from destruction or pollution | Synonyms: conservationist |
|---|
| epanalepsis | (noun) repetition after intervening words | - |
|---|
| ephemeral | (noun) anything short-lived, as an insect that lives only for a day in its winged form | Synonyms: ephemeron |
|---|
| ephemerality | (noun) the property of lasting for a very short time | Synonyms: ephemeralness, fleetingness |
|---|
| ephemeralness | (noun) the property of lasting for a very short time | Synonyms: ephemerality, fleetingness |
|---|
| epicalyx | (noun) a group of bracts simulating a calyx as in a carnation or hibiscus | Synonyms: calycle, calyculus, false calyx |
|---|
| epidural | (noun) regional anesthesia resulting from injection of an anesthetic into the epidural space of the spinal cord; sensation is lost in the abdominal and genital and pelvic areas; used in childbirth and gynecological surgery | Synonyms: epidural anaesthesia, epidural anesthesia |
|---|
| epithalamium | (noun) an ode honoring a bride and bridegroom | - |
|---|
| equal | (noun) a person who is of equal standing with another in a group | Synonyms: compeer, match, peer |
|---|
| equalisation | (noun) the act of making equal or uniform | Synonyms: equalization, leveling |
|---|
| equaliser | (noun) a weight that balances another weight | Synonyms: balance, counterbalance, counterpoise, counterweight, equalizer |
|---|
| (noun) electronic equipment that reduces frequency distortion | Synonyms: equalizer |
| equalitarian | (noun) a person who believes in the equality of all people | Synonyms: egalitarian |
|---|
| equalitarianism | (noun) the doctrine of the equality of mankind and the desirability of political and economic and social equality | Synonyms: egalitarianism |
|---|
| equality | (noun) the quality of being the same in quantity or measure or value or status | - |
|---|
| (noun) a state of being essentially equal or equivalent; equally balanced | Synonyms: equation, equivalence, par |
| equalization | (noun) the act of making equal or uniform | Synonyms: equalisation, leveling |
|---|
| equalizer | (noun) a score that makes the match even | - |
|---|
| (noun) a weight that balances another weight | Synonyms: balance, counterbalance, counterpoise, counterweight, equaliser |
| (noun) electronic equipment that reduces frequency distortion | Synonyms: equaliser |
| equatorial | (noun) a telescope whose mounting has only two axes of motion, one parallel to the Earth's axis and the other one at right angles to it | - |
|---|
| equilateral | (noun) a figure whose sides are all equal | - |
|---|
| equinoctial | (noun) the great circle on the celestial sphere midway between the celestial poles | Synonyms: celestial equator, equinoctial circle, equinoctial line |
|---|