| driveller | (noun) someone whose talk is trivial drivel | Synonyms: jabberer |
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| (noun) a person who dribbles | Synonyms: dribbler, drooler, slobberer |
| drupelet | (noun) a small part of an aggregate fruit that resembles a drupe | - |
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| duel | (noun) a prearranged fight with deadly weapons by two people (accompanied by seconds) in order to settle a quarrel over a point of honor | Synonyms: affaire d'honneur |
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| (noun) any struggle between two skillful opponents (individuals or groups) | - |
| dueler | (noun) a person who fights duels | Synonyms: duelist, dueller, duellist |
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| duelist | (noun) a person who fights duels | Synonyms: dueler, dueller, duellist |
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| dueller | (noun) a person who fights duels | Synonyms: dueler, duelist, duellist |
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| duellist | (noun) a person who fights duels | Synonyms: dueler, duelist, dueller |
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| duffel | (noun) a coarse heavy woolen fabric | Synonyms: duffle |
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| (noun) a large cylindrical bag of heavy cloth; for carrying personal belongings | Synonyms: duffel bag, duffle, duffle bag |
| dumbbell | (noun) an exercising weight; two spheres connected by a short bar that serves as a handle | - |
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| (noun) an ignorant or foolish person | Synonyms: boob, booby, dope, dummy, pinhead |
| dweller | (noun) a person who inhabits a particular place | Synonyms: denizen, habitant, indweller, inhabitant |
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| dwelling | (noun) housing that someone is living in | Synonyms: abode, domicile, dwelling house, habitation, home |
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| easel | (noun) an upright tripod for displaying something (usually an artist's canvas) | - |
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| echelon | (noun) a diffraction grating consisting of a pile of plates of equal thickness arranged stepwise with a constant offset | - |
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| (noun) a body of troops arranged in a line | - |
| (noun) status in a society or organization | - |
| edelweiss | (noun) alpine perennial plant native to Europe having leaves covered with whitish down and small flower heads held in stars of glistening whitish bracts | Synonyms: Leontopodium alpinum |
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| eel | (noun) voracious snakelike marine or freshwater fishes with smooth slimy usually scaleless skin and having a continuous vertical fin but no ventral fins | - |
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| (noun) the fatty flesh of eel; an elongate fish found in fresh water in Europe and America; large eels are usually smoked or pickled | - |
| eelblenny | (noun) eellike fishes found in subarctic coastal waters | - |
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| eelgrass | (noun) submerged marine plant with very long narrow leaves found in abundance along North Atlantic coasts | Synonyms: grass wrack, sea wrack, Zostera marina |
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| (noun) submerged aquatic plant with ribbonlike leaves; Old World and Australia | Synonyms: tape grass, Vallisneria spiralis, wild celery |
| eelpout | (noun) marine eellike mostly bottom-dwelling fishes of northern seas | Synonyms: pout |
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| (noun) elongate freshwater cod of northern Europe and Asia and North America having barbels around its mouth | Synonyms: burbot, cusk, ling, Lota lota |
| eelworm | (noun) any of various small free-living plant-parasitic roundworms | - |
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| eggshell | (noun) the exterior covering of a bird's egg | Synonyms: shell |
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| el | (noun) a railway that is powered by electricity and that runs on a track that is raised above the street level | Synonyms: elevated, elevated railroad, elevated railway, overhead railway |
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| elaborateness | (noun) marked by elaborately complex detail | Synonyms: elaboration, intricacy, involution |
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| (noun) an ornate appearance; being elaborately (even excessively) decorated | Synonyms: ornateness |
| elaboration | (noun) developing in intricate and painstaking detail | Synonyms: working out |
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| (noun) addition of extra material or illustration or clarifying detail | Synonyms: amplification |
| (noun) marked by elaborately complex detail | Synonyms: elaborateness, intricacy, involution |
| (noun) a discussion that provides additional information | Synonyms: enlargement, expansion |
| (noun) the result of improving something | Synonyms: refinement |
| elan | (noun) enthusiastic and assured vigor and liveliness | - |
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| (noun) distinctive and stylish elegance | Synonyms: dash, flair, panache, style |
| (noun) a feeling of strong eagerness (usually in favor of a person or cause) | Synonyms: ardor, ardour, zeal |
| eland | (noun) either of two large African antelopes of the genus Taurotragus having short spirally twisted horns in both sexes | - |
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| elaphure | (noun) large Chinese deer surviving only in domesticated herds | Synonyms: Elaphurus davidianus, pere david's deer |
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| elapid | (noun) any of numerous venomous fanged snakes of warmer parts of both hemispheres | Synonyms: elapid snake |
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| elasmobranch | (noun) any of numerous fishes of the class Chondrichthyes characterized by a cartilaginous skeleton and placoid scales: sharks, rays, skates | Synonyms: selachian |
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| elastance | (noun) The capacity of a dielectric for opposing an electric charge | Synonyms: electrical elastance |
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| elastase | (noun) a pancreatic enzyme that catalyzes the hydrolysis of elastin | - |
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| elastic | (noun) a fabric made of yarns containing an elastic material | - |
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| (noun) a narrow band of elastic rubber used to hold things (such as papers) together | Synonyms: elastic band, rubber band |
| elasticity | (noun) the tendency of a body to return to its original shape after it has been stretched or compressed | Synonyms: snap |
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| elastin | (noun) a fibrous scleroprotein found in elastic tissues such as the walls of arteries | - |
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| elastomer | (noun) any of various elastic materials that resemble rubber (resumes its original shape when a deforming force is removed) | - |
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| elastosis | (noun) breakdown of elastic tissue (as the loss of elasticity in the skin of elderly people that results from degeneration of connective tissue) | - |
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| elater | (noun) any of various widely distributed beetles | Synonyms: elaterid, elaterid beetle |
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| elaterid | (noun) any of various widely distributed beetles | Synonyms: elater, elaterid beetle |
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| elation | (noun) a feeling of joy and pride | Synonyms: high spirits, lightness |
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| (noun) an exhilarating psychological state of pride and optimism; an absence of depression | - |
| elbow | (noun) the joint of a mammal or bird that corresponds to the human elbow | - |
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| (noun) the part of a sleeve that covers the elbow joint | - |
| (noun) a sharp bend in a road or river | - |
| (noun) a length of pipe with a sharp bend in it | - |
| (noun) hinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadruped | Synonyms: articulatio cubiti, cubital joint, cubitus, elbow joint, human elbow |
| elbowing | (noun) jostling with the elbows | - |
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| eld | (noun) a late time of life | Synonyms: age, geezerhood, old age, years |
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| (noun) a time of life (usually defined in years) at which some particular qualification or power arises | Synonyms: age |
| elder | (noun) a person who is older than you are | Synonyms: senior |
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| (noun) any of various church officers | - |
| (noun) any of numerous shrubs or small trees of temperate and subtropical Northern Hemisphere having white flowers and berrylike fruit | Synonyms: elderberry bush |
| elderberry | (noun) berrylike fruit of an elder used for e.g. wines and jellies | - |
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| (noun) a common shrub with black fruit or a small tree of Europe and Asia; fruit used for wines and jellies | Synonyms: black elder, bourtree, common elder, European elder, Sambucus nigra |
| elderly | (noun) people who are old collectively | Synonyms: aged |
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| eldership | (noun) the office of elder | - |
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| eldest | (noun) the offspring who came first in the order of birth | Synonyms: firstborn |
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| eldorado | (noun) an imaginary place of great wealth and opportunity; sought in South America by 16th-century explorers | Synonyms: El Dorado |
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| elecampane | (noun) tall coarse Eurasian herb having daisylike yellow flowers with narrow petals whose rhizomatous roots are used medicinally | Synonyms: Inula helenium |
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| elect | (noun) an exclusive group of people | Synonyms: chosen |
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| election | (noun) the act of selecting someone or something; the exercise of deliberate choice | - |
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| (noun) a vote to select the winner of a position or political office | - |
| (noun) the predestination of some individuals as objects of divine mercy (especially as conceived by Calvinists) | - |
| (noun) the status or fact of being elected | - |
| electioneering | (noun) the campaign of a candidate to be elected | Synonyms: campaigning, candidacy, candidature, political campaign |
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| (noun) persuasion of voters in a political campaign | Synonyms: bell ringing, canvassing |
| elective | (noun) a course that the student can select from among alternatives | Synonyms: elective course |
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| electiveness | (noun) Quality or state in which choice or discretion is allowed. | Synonyms: optionality |
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| elector | (noun) a citizen who has a legal right to vote | Synonyms: voter |
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| electorate | (noun) the body of enfranchised citizens; those qualified to vote | - |
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| electric | (noun) a car that is powered by electricity | Synonyms: electric automobile, electric car |
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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 | - |
| 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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| 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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| 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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| 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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| 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 | (noun) a fixed capacitor consisting of two electrodes separated by an electrolyte | Synonyms: electrolytic capacitor, electrolytic condenser |
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| 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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| 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 | - |
| electrometer | (noun) meter to measure electrostatic voltage differences; draws no current from the source | - |
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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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| 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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| 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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| 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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| electroplater | (noun) a plater who uses electrolysis | - |
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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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| 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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