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triceps

[ trahy-seps ]
/ ˈtraɪ sɛps /
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noun, plural tri·ceps·es [trahy-sep-siz], /ˈtraɪ sɛp sɪz/, tri·ceps.Anatomy.
a muscle having three heads or points of origin, especially the muscle on the back of the arm, the action of which straightens the elbow.

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Origin of triceps

1570–80; <Latin: three-headed, equivalent to tri-tri- + -ceps, stem -cipit- -headed, derivative of caput head
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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British Dictionary definitions for triceps

triceps
/ (ˈtraɪsɛps) /

noun plural -cepses (-sɛpsɪz) or -ceps
any muscle having three heads, esp the one (triceps brachii) that extends the forearm

Word Origin for triceps

C16: from Latin, from tri- + caput head
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for triceps

triceps
[ trīsĕps′ ]

The muscle at the back of the upper arm that raises and lowers the forearm. The triceps has three points of attachment to bone at its origin.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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