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[kuh-rot-id] /kəˈrɒt ɪd/ Anatomy
Also called carotid artery. either of the two large arteries, one on each side of the head, that carry blood to the head and that divide into an external branch supplying the neck, face, and other external parts, and an internal branch supplying the brain, eye, and other internal parts.
pertaining to a carotid artery.
Origin of carotid
1660-70; < Greek karōtídes neck arteries, equivalent to karōt(ikós) soporific (kár(os) stupor + -ōtikos -otic) + -ides -id1; so called by Galen, who found that their compression causes stupor
Related forms
carotidal, adjective
intercarotid, adjective
postcarotid, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for carotid
  • Instead its long teeth would have pierced the animal's windpipe and carotid artery-killing it fairly quickly.
  • With relative ease, these items could be inserted into the necks of the pigs next to the jugular veins and carotid arteries.
  • The drug, while lowering cholesterol effectively, failed to slow the progression of carotid artery plaque.
  • Without hesitation, a lioness severed his carotid artery.
  • The doctor has recommended either a carotid endarterectomy or angioplasty with stent.
  • There's a menu of options for clearing blocked carotid.
  • During the hospital stay, he had carotid artery surgery.
  • Branches-The cervical portion of the internal carotid gives off no branches.
  • The abducent nerve is joined by several filaments from the carotid and cavernous plexuses, and by one from the ophthalmic nerve.
  • carotid artery surgery is a procedure to restore proper blood flow to the brain.
British Dictionary definitions for carotid


either one of the two principal arteries that supply blood to the head and neck
of or relating to either of these arteries
Derived Forms
carotidal, adjective
Word Origin
C17: from French, from Greek karōtides, from karoun to stupefy; so named by Galen, because pressure on them produced unconsciousness
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for carotid

1540s, "pertaining to the two great arteries of the neck," from Greek karotides "great arteries of the neck," plural of karotis, from karoun "plunge into sleep or stupor," because compression of these arteries was believed to cause unconsciousness (Galen). But if this is folk etymology, the Greek word could be from kara "head," related to kranion "skull, upper part of the head," from PIE root *ker- "horn, head" (see horn (n.)).

Online Etymology Dictionary, © 2010 Douglas Harper
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carotid in Medicine

carotid ca·rot·id (kə-rŏt'ĭd)
Either of two major arteries, one on each side of the neck, that carry blood to the head. adj.
Relating to either of these arteries.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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