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Glossary of Anatomy Terms
beginning with letter E
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ear Tweet Definition of ear Like Definition of ear on Facebook
noun
  1. (countable) The organ of hearing, consisting of the pinna, auditory canal, eardrum, malleus, incus, stapes and cochlea.
  2. (countable) The external part of the organ of hearing, the auricle.
  3. (countable) (slang) A police informant.
    • Quotations:
      From the movie w:The Enforcer, The Enforcer.
      : If you don"t cooperate, I"ll put it out on the street that you"re an ear.
verb
  1. (archaic) To plough.
    • Quotations:
      1595, William Shakespeare, Richard II
      : That power I have, discharge; and let them go
      : To the land that hath some hope to grow,
      : For I have none.
earlobe Tweet Definition of earlobe Like Definition of earlobe on Facebook
noun
  1. (alternative spelling of, ear lobe)
emissary Tweet Definition of emissary Like Definition of emissary on Facebook
noun
  1. an agent sent on a mission to represent the interests of someone else
  1. (anatomy) a venous channel in the skull
endocardium Tweet Definition of endocardium Like Definition of endocardium on Facebook
noun (endocardia)
  1. (context, anatomy, cardiology) A thin serous membrane that lines the interior of the heart.
endocranium Tweet Definition of endocranium Like Definition of endocranium on Facebook
noun (endocrania)
  1. (anatomy) The layer between the dura mater and the skull.
endocrine gland Tweet Definition of endocrine gland Like Definition of endocrine gland on Facebook
noun
  1. (anatomy) Any of various glands that secrete hormones directly into the blood or lymph and not through a duct.
endolymph Tweet Definition of endolymph Like Definition of endolymph on Facebook
noun
  1. The fluid inside the labyrinth of the inner ear
endometrium Tweet Definition of endometrium Like Definition of endometrium on Facebook
noun (endometria)
  1. the mucus membrane that lines the uterus in mammals and in which fertilized eggs are implanted
endosteum Tweet Definition of endosteum Like Definition of endosteum on Facebook
noun (endostea)
  1. (biology) A membranous vascular layer of cells which line the medullary cavity of a bone
endothelium Tweet Definition of endothelium Like Definition of endothelium on Facebook
noun (pluralendothelia)
  1. (anatomy) A thin layer of flat epithelium, epithelial cells that lines the heart, serous cavities, lymph vessels, and blood vessels.
enteric Tweet Definition of enteric Like Definition of enteric on Facebook
adjective
  1. of, relating to, within, or by way of the intestines
  2. staying intact in the stomach, then dissolving in the intestine
epidermis Tweet Definition of epidermis Like Definition of epidermis on Facebook
noun
  1. The outer, protective layer of the skin of vertebrates, covering the dermis
  2. The similar outer layer of cells in invertebrates and plants
epididymis Tweet Definition of epididymis Like Definition of epididymis on Facebook
noun (pluralepididymides)
  1. (anatomy) A narrow, tightly-coiled tube connecting the vas efferens from the rear of each testicle to its vas deferens, which sperm are stored during maturation.
epiglottis Tweet Definition of epiglottis Like Definition of epiglottis on Facebook
noun (English plural epiglottises; classical plural epiglottides)
  1. (anatomy) A cartilaginous organ in the throat of terrestrial vertebrates covering the glottis when swallowing to prevent food and liquid from entering the trachea, and in Homo sapiens also a speech organ.
My is full of bees!
epimysium Tweet Definition of epimysium Like Definition of epimysium on Facebook
noun epimysium (plural epimysia )
  1. a layer of connective tissue which surrounds individual muscles
epiphysis Tweet Definition of epiphysis Like Definition of epiphysis on Facebook
noun (epiphyses)
  1. (anatomy) the pineal gland
  2. (anatomy) the rounded end of any long bone
erectile Tweet Definition of erectile Like Definition of erectile on Facebook
adjective
  1. Capable of being raised to an upright position.
  2. Of or relating to tissue capable of filling with blood and becoming rigid.
esophageal Tweet Definition of esophageal Like Definition of esophageal on Facebook
adjective
  1. Pertaining to the esophagus.
ethmoid Tweet Definition of ethmoid Like Definition of ethmoid on Facebook
noun
  1. The ethmoid bone.
adjective
  1. Resembling a sieve.
Eustachian tube Tweet Definition of Eustachian tube Like Definition of Eustachian tube on Facebook
noun
  1. (anatomy) In humans and other land vertebrates, a tube that links the pharynx to the cavity of the middle ear to allow the equalization of the pressure on both sides of the eardrum.
evaginate Tweet Definition of evaginate Like Definition of evaginate on Facebook
verb (evaginates, evaginating, evaginated)
  1. (intransitive) To evert a body organ inside surface to outside.
  2. (transitive) To cause a body organ or part to become inside-out.
exocrine gland Tweet Definition of exocrine gland Like Definition of exocrine gland on Facebook
noun
  1. (anatomy) Any of various glands which secrete via a duct, typically into the digestive tract or onto the skin.
extensor Tweet Definition of extensor Like Definition of extensor on Facebook
noun (pluralextensors)
  1. (anatomy) A muscle whose contraction extends or straightens a limb or body part.
external ear Tweet Definition of external ear Like Definition of external ear on Facebook
noun
  1. The outer ear.
extremity Tweet Definition of extremity Like Definition of extremity on Facebook
noun (pluralextremities)
  1. The most extreme or furthest point of something.
  2. An extreme measure.
  3. A hand or foot.
Guillian-Barré syndrome causes one to not be able to move one's extremities.
extrinsic Tweet Definition of extrinsic Like Definition of extrinsic on Facebook
adjective
  1. external, separable from the thing itself, inessential
  2. not belonging to, outside of
eye Tweet Definition of eye Like Definition of eye on Facebook
noun (plural eyes or (archaic) eyen)
  1. An organ that is sensitive to light, which it converts to electrical signals passed to the brain, by which means animals see.
  2. A hole at the blunt end of a needle through which thread is passed.
  3. A fitting consisting of a loop of metal or other material, suitable for receiving a hook.
  4. The center/centre of a hurricane.
  5. A mark on an animal, such as a peacock or butterfly, resembling an eye.
  6. A reproductive bud in a potato.
  7. The ability to notice what others might miss.
He has a good eye for talent.
verb (eyes, eyeing or eying, eyed)
  1. To look at someone or something as if with the intent to do something with that person or thing.
eyeball Tweet Definition of eyeball Like Definition of eyeball on Facebook
noun (pluraleyeballs)
  1. the ball of the eye
verb
  1. To gauge, estimate or judge by eye; to look or glance at.
A good cook can often just the correct quantities of ingredients.
Each geometric construction must be exact; eyeballing it and getting close does not count.
  1. To scrutinize
eyebrow Tweet Definition of eyebrow Like Definition of eyebrow on Facebook
noun (plural:eyebrows)
  1. The hair that grows over the bone ridge above the eye socket.
eyelash Tweet Definition of eyelash Like Definition of eyelash on Facebook
noun (plural:eyelashes)
  1. One of the hairs which grow along the edge of eyelids.
eyelid Tweet Definition of eyelid Like Definition of eyelid on Facebook
noun
  1. (anatomy) A thin skin membrane that covers and moves over an eye.
eye socket Tweet Definition of eye socket Like Definition of eye socket on Facebook
noun
  1. (anatomy) The bony cavity which contains the eyeball and its associated muscles, vessels, and nerves. In humans, seven bones make up each bony orbit:
frontal bone
zygomatic bone
maxilla
sphenoid bone
ethmoid bone
palatine bone
lacrimal bone

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