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Glossary of Physiology Terms
beginning with letter E
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earwax
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noun
  1. A waxy substance secreted by the ear.
eat
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verb (eats, eating, ate, eaten)
  1. (transitive) To consume (something solid or semi-solid, usually food) by putting it into the mouth and swallowing it.
He"s eating an apple.
  1. (context, transitive, colloquial) To cause (someone) to worry.
What"s eating you?
  1. (transitive) (Idiom) To take a loss in a transaction
It"s a special order, we can"t send it back; if the customer won"t accept it, we"ll have to the 40 tons of steel ourselves.
  1. (intransitive) To consume a meal.
What time do we this evening?
Don"t disturb me now; can't you see I"m eating?
eating
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noun (eatings, -)
  1. the act of consuming food
  2. food, comestibles
    I remember when we visited Aunt Martha's house, we had some really good !
adjective
  1. suitable to be eaten without being cooked; for example an eating apple
egest
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verb
  1. To excrete from the body.
egesta
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noun (pluralonly)
  1. The waste which is carried out from a cell or an organism; the excrements.
egestion
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noun
  1. The excretion of undigested food as feces, faeces.
ejaculate
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noun
  1. (uncountable) semen, Semen ejected during an ejaculation.
ejaculation
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noun
  1. The act of throwing or darting out with a sudden force and rapid flight.
  2. The uttering of a short, sudden exclamation or prayer, or the exclamation or prayer uttered.
  3. The act of ejecting or suddenly throwing, as a fluid from a duct.
  4. (biology) The forcible ejection of semen from the mammalian urethra, a reflex in response to sexual stimulation.
ejaculatory
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adjective
  1. of or pertaining to ejaculation
  2. exclamatory
elaborate
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adjective ((compar) more elaborate, (superl) most elaborate)
  1. Highly complex, detailed, or sophisticated
After reading a long, description, I was impressed but no wiser.
  1. intricate, fancy, flashy, or showy
I stared for hours at the pattern in the rug.
electrolyte
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noun
  1. (chemistry) a substance that, in solution or when molten, ionizes and conducts electricity
  2. (physiology) any of the various ions (such as sodium or chloride) that regulate the electric charge on cells and the flow of water across their membranes
eliminate
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verb (eliminat, ing)
  1. (transitive) To completely destroy (something) so that it no longer exists.
  2. (slang) To kill (a person or animal).
emission
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noun
  1. Something that is emitted, especially the exhaust from a car.
  2. The act of sending or throwing out; the act of sending forth or putting into circulation; issue; as, the emission of light from the sun; the emission of heat from a fire; the issuing of bank notes.
  3. That which is sent out, issued, or put in circulation at one time; issue; as, the emission was mostly blood. Emission theory (Physics), the theory of Newton, regarding light as consisting of emitted particles or corpuscles. See Corpuscular theory, under Corpuscular.
erection
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noun
  1. (uncountable) The act of build, building or putting up or together of something; construction.
  2. (uncountable) Anything erected or built.
    1. (context, physiology) The physiological process by which a penis become erect by being engorged with blood.
  3. (context, physiology) A penis that has become rigid.
eruct
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verb
  1. To burp or belch
erythrocyte
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noun
  1. (cytology) An anucleate cell in the blood involved with the transport of oxygen. Also called a red blood cell because of the red coloring of hemoglobin.
evacuate
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verb (evacuat, es)
  1. To make empty; to empty out; to remove the contents of; as, to evacuate a vessel or dish.
  2. Fig.: To make empty; to deprive.
  3. To remove; to eject; to void; to discharge, as the contents of a vessel, or of the bowels.
  4. To withdraw from; to quit; to retire from; as, soldiers from a country, city, or fortress
evacuation
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noun
  1. The act of emptying, clearing of the contents, or discharging.
  2. Withdrawal of troops from a town, fortress, etc.
  3. Voidance of any matter by the natural passages of the body or by an artificial opening; defecation; also, a diminution of the fluids of an animal body by cathartics, venesection, or other means.
  4. That which is evacuated or discharged; especially, a discharge by stool or other natural means.
  5. Abolition; nullification.
excrement
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noun
  1. Animal solid waste; feces.
excreta
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noun (plurale tantum, always plural, sg=excreta)
  1. Human bodily waste which is excreted from the body.
excrete
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verb (excret, ing)
  1. (context, of an organism) to discharge from the system.
excretion
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noun
  1. The process of remove, removing or ejecting material that has no further utility, especially from the body; the act of excrete, excreting.
  2. Something being excreted in that manner.
exhalation
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noun
  1. The act or process of exhale, exhaling, or sending forth in the form of steam or vapor; evaporation.
  2. That which is exhaled, or which rises in the form of vapor, fume, or steam; effluvium; emanation; as, exhalations from the earth or flowers, decaying matter, etc.
  3. A bright phenomenon; a meteor.
expectorate
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verb (expectorat, ed)
  1. To cough up fluid from the lungs.
  2. To spit.
expectoration
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noun
  1. The action of expectorate, expectorating, of ejecting phlegm or mucus from the throat or lungs by coughing, hawking, or spitting.
  2. That which is expectorated, as phlegm or mucus.
exude
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verb (exud, ing)
  1. To discharge through pores or incisions, as moisture or other liquid matter; to give out.
eyesight
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noun
  1. vision, Vision or the faculty of sight
  2. view, View or the range of vision
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