| downstream | (adjective) in the direction of a stream's current | - |
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| (adverb) away from the source or with the current | Synonyms: downriver |
| downstroke | (noun) a stroke normally made in a downward direction | - |
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| downtrodden | (adjective) abused or oppressed by people in power | - |
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| drawstring | (noun) a tie consisting of a cord that goes through a seam around an opening | Synonyms: drawing string, string |
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| dumbstricken | (adjective) as if struck dumb with astonishment and surprise | Synonyms: dumbfounded, dumbstruck, dumfounded, flabbergasted, stupefied, thunderstruck |
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| dumbstruck | (adjective) as if struck dumb with astonishment and surprise | Synonyms: dumbfounded, dumbstricken, dumfounded, flabbergasted, stupefied, thunderstruck |
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| dustrag | (noun) a piece of cloth used for dusting | Synonyms: dustcloth, duster |
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| dystrophy | (noun) any degenerative disorder resulting from inadequate or faulty nutrition | - |
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| (noun) any of several hereditary diseases of the muscular system characterized by weakness and wasting of skeletal muscles | Synonyms: muscular dystrophy |
| 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 |
| eccentrically | (adverb) not symmetrically with respect to the center | - |
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| (adverb) in an eccentric or bizarre manner | - |
| eccentricity | (noun) strange and unconventional behavior | - |
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| (noun) a circularity that has a different center or deviates from a circular path | - |
| (noun) (geometry) a ratio describing the shape of a conic section; the ratio of the distance between the foci to the length of the major axis | - |
| econometric | (adjective) of or relating to econometrics | - |
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| econometrician | (noun) an economist who uses statistical and mathematical methods | Synonyms: econometrist |
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| econometrics | (noun) the application of mathematics and statistics to the study of economic and financial data | - |
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| econometrist | (noun) an economist who uses statistical and mathematical methods | Synonyms: econometrician |
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| ectrodactyly | (noun) congenital abnormality involving the absence of some fingers or toes | - |
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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 |
| egocentrism | (noun) concern for your own interests and welfare | Synonyms: egoism, self-centeredness, self-concern, self-interest |
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| egotrip | (verb) act in a way that attracts attention | - |
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| 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 |
| electrical | (adjective) relating to or concerned with electricity | - |
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| (adjective) using or providing or producing or transmitting or operated by electricity | Synonyms: electric |
| electrically | (adverb) by electricity | - |
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| electrician | (noun) a person who installs or repairs electrical or telephone lines | Synonyms: lineman, linesman |
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| electricity | (noun) keen and shared excitement | - |
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| (noun) a physical phenomenon associated with stationary or moving electrons and protons | - |
| (noun) energy made available by the flow of electric charge through a conductor | Synonyms: electrical energy, power |
| electrification | (noun) the activity of thrilling or markedly exciting some person or group | - |
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| (noun) the act of providing electricity | - |
| electrify | (verb) equip for use with electricity | Synonyms: wire |
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| (verb) charge (a conductor) with electricity | - |
| (verb) excite suddenly and intensely | - |
| electrifying | (adjective) causing a surge of emotion or excitement | Synonyms: thrilling |
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| electrocardiogram | (noun) a graphical recording of the cardiac cycle produced by an electrocardiograph | Synonyms: cardiogram, ECG, EKG |
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| electrocardiograph | (noun) medical instrument that records electric currents associated with contractions of the heart | Synonyms: cardiograph |
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| electrocardiographic | (adjective) of or relating to an electrocardiograph | - |
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| electrocardiography | (noun) diagnostic procedure consisting of recording the activity of the heart electronically with a cardiograph (and producing a cardiogram) | Synonyms: cardiography |
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| electrocautery | (noun) application of a needle heated by an electric current to destroy tissue (as to remove warts) | - |
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| electrochemical | (adjective) of or involving electrochemistry | - |
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| electrochemistry | (noun) branch of chemistry that deals with the chemical action of electricity and the production of electricity by chemical reactions | - |
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| electrocute | (verb) kill by electrocution, as in the electric chair | Synonyms: fry |
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| (verb) kill by electric shock | - |
| electrocution | (noun) killing by electric shock | - |
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| (noun) execution by electricity | Synonyms: burning |
| electrocutioner | (noun) an executioner who uses electricity to kill the condemned person | - |
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| electrode | (noun) a conductor used to make electrical contact with some part of a circuit | - |
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| electrodeposition | (noun) the deposition of a substance on an electrode by the action of electricity (especially by electrolysis) | - |
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| electrodynamometer | (noun) measuring instrument that uses the interaction of the magnetic fields of two coils to measure current or voltage or power | - |
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| electroencephalogram | (noun) a graphical record of electrical activity of the brain; produced by an electroencephalograph | Synonyms: EEG, encephalogram |
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| electroencephalograph | (noun) medical instrument that records electric currents generated by the brain | - |
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| electroencephalographic | (adjective) of or relating to an electroencephalograph | - |
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| electrograph | (noun) electrical device used for etching by electrolytic means | - |
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| (noun) an apparatus for the electrical transmission of pictures | - |
| electrolocation | (noun) The use of electroreception to locate surrounding objects. | - |
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| electrologist | (noun) someone skilled in the use of electricity to remove moles or warts or hair roots | - |
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| electrolysis | (noun) removing superfluous or unwanted hair by passing an electric current through the hair root | - |
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| (noun) (chemistry) a chemical decomposition reaction produced by passing an electric current through a solution containing ions | - |
| electrolyte | (noun) a solution that conducts electricity | - |
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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 |
| electromagnet | (noun) a temporary magnet made by coiling wire around an iron core; when current flows in the coil the iron becomes a magnet | - |
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| electromagnetic | (adjective) pertaining to or exhibiting magnetism produced by electric charge in motion | - |
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| electromagnetics | (noun) the branch of physics concerned with electromagnetic phenomena | Synonyms: electromagnetism |
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| electromagnetism | (noun) the branch of physics concerned with electromagnetic phenomena | Synonyms: electromagnetics |
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| (noun) magnetism produced by an electric current | - |
| electromechanical | (adjective) of or relating to or involving an electrically operated mechanical device | - |
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| electrometer | (noun) meter to measure electrostatic voltage differences; draws no current from the source | - |
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| electromotive | (adjective) concerned with or producing electric current | - |
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| electromyogram | (noun) a graphical record of electric currents associated with muscle contractions | Synonyms: EMG |
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| electromyograph | (noun) a medical instrument that records the electrical waves associated with the activity of skeletal muscles | - |
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| electromyography | (noun) diagnosis of neuromuscular disorders with the use of an electromyograph | - |
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| electron | (noun) an elementary particle with negative charge | Synonyms: negatron |
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| electronegative | (adjective) having a negative charge | Synonyms: negative, negatively charged |
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| electronegativity | (noun) (chemistry) the tendency of an atom or radical to attract electrons in the formation of an ionic bond | Synonyms: negativity |
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| electroneutral | (adjective) having no net electric charge | Synonyms: neutral |
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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 | - |
| electronically | (adverb) by electronic means | - |
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| electronics | (noun) the branch of physics that deals with the emission and effects of electrons and with the use of electronic devices | - |
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| electrophoresis | (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, dielectrolysis, ionophoresis |
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| electrophoretic | (adjective) of or relating to electrophoresis | Synonyms: cataphoretic |
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| electrophorus | (noun) a simple electrostatic generator that generates repeated charges of static electricity | - |
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| electroplate | (noun) any artifact that has been plated with a thin coat of metal by electrolysis | - |
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| (verb) coat with metal by electrolysis | - |
| electroplater | (noun) a plater who uses electrolysis | - |
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| electropositive | (adjective) having a positive charge | Synonyms: positive, positively charged |
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| electroretinogram | (noun) a graphical recording of the electrical activity of the retina that results when light is flashed into the eye | - |
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| electroscope | (noun) measuring instrument that detects electric charge; two gold leaves diverge owing to repulsion of charges with like sign | - |
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| electroshock | (noun) the administration of a strong electric current that passes through the brain to induce convulsions and coma | Synonyms: ECT, electroconvulsive therapy, electroshock therapy |
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| electrosleep | (noun) unconsciousness brought about by the passage of a low voltage electric current through the brain | - |
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| electrostatic | (adjective) concerned with or producing or caused by static electricity | Synonyms: static |
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| electrostatically | (adverb) in an electrostatic manner | - |
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| electrostatics | (noun) the branch of physics that deals with static electricity | - |
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| electrosurgery | (noun) surgery performed with electrical devices (as in electrocautery) | - |
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| electrotherapist | (noun) someone who specializes in the treatment of disease by electricity | - |
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| electrotherapy | (noun) the therapeutic application of electricity to the body (as in the treatment of various forms of paralysis) | Synonyms: electric healing, electrical healing, galvanism |
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| electrum | (noun) an alloy of gold and silver | - |
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| elytron | (noun) either of the horny front wings in beetles and some other insects which cover and protect the functional hind wings | Synonyms: wing case |
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| emmetropia | (noun) (ophthalmology) the normal refractive condition of the eye in which there is clear focus of light on the retina | - |
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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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| enchantress | (noun) a female sorcerer or magician | Synonyms: witch |
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| (noun) a woman who is considered to be dangerously seductive | Synonyms: Delilah, femme fatale, siren, temptress |
| endocentric | (adjective) fulfilling the grammatical role of one of its constituents | - |
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| endometrial | (adjective) of or relating to the endometrium | - |
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| endometriosis | (noun) the presence of endometrium elsewhere than in the lining of the uterus; causes premenstrual pain and dysmenorrhea | Synonyms: adenomyosis |
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| endometritis | (noun) inflammation of the lining of the uterus (of the endometrium) | Synonyms: metritis |
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| endometrium | (noun) (pregnancy) the mucous membrane that lines the uterus; thickens under hormonal control and (if pregnancy does not occur) is shed in menstruation; if pregnancy occurs it is shed along with the placenta at parturition | - |
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| entrails | (noun) internal organs collectively (especially those in the abdominal cavity) | Synonyms: innards, insides, viscera |
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| entrain | (verb) board a train | - |
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| entrance | (noun) the act of entering | Synonyms: entering, entry, incoming, ingress |
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| (noun) something that provides access (to get in or get out) | Synonyms: entranceway, entree, entry, entryway |
| (noun) a movement into or inward | Synonyms: entering |
| (verb) put into a trance | Synonyms: spellbind |
| (verb) attract; cause to be enamored | Synonyms: becharm, beguile, bewitch, captivate, capture, catch, charm, enamor, enamour, enchant, fascinate, trance |
| entranced | (adjective) filled with wonder and delight | Synonyms: beguiled, captivated, charmed, delighted, enthralled |
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| entrancement | (noun) a feeling of delight at being filled with wonder and enchantment | Synonyms: ravishment |
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| entranceway | (noun) something that provides access (to get in or get out) | Synonyms: entrance, entree, entry, entryway |
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| entrancing | (adjective) capturing interest as if by a spell | Synonyms: bewitching, captivating, enchanting, enthralling, fascinating |
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| entrant | (noun) a commodity that enters competition with established merchandise | - |
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| (noun) one who enters a competition | - |
| (noun) any new participant in some activity | Synonyms: fledgeling, fledgling, freshman, neophyte, newbie, newcomer, starter |
| (noun) someone who enters | - |