[ hahy-oid ]
/ ˈhaɪ ɔɪd /
Anatomy, Zoology


Also hy·oi·dal, hy·oi·de·an. noting or pertaining to a U-shaped bone at the root of the tongue in humans, or a corresponding bone or collection of bones in animals.


the hyoid bone.

Origin of hyoid

1700–10; < New Latin hȳoïdes < Greek hȳoeidḗs, shaped like the letter hypsilon (i.e. upsilon), equivalent to hȳ- (derivative of letter name hŷ, variant of ŷ; see upsilon) + -oeidēs -oid

Related forms

post·hy·oid, adjectivesub·hy·oid, adjectivesub·hy·oid·e·an, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for hyoid

British Dictionary definitions for hyoid


/ (ˈhaɪɔɪd) /

adjective Also: hyoidal, hyoidean

of or relating to the hyoid bone

noun Also: hyoid bone

the horseshoe-shaped bone that lies at the base of the tongue and above the thyroid cartilage
a corresponding bone or group of bones in other vertebrates

Word Origin for hyoid

C19: from New Latin hӯoïdes, from Greek huoeidēs having the shape of the letter upsilon, from hu upsilon + -oid
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

Medicine definitions for hyoid


[ hīoid′ ]


Shaped like the letter U.
Of or relating to the hyoid bone.


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