hyoid

American  

[hahy-oid] / ˈhaɪ ɔɪd /

adjective

1. Also hyoidal hyoidean 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.

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noun

1. the hyoid bone.

hyoid British  

/ ˈhaɪɔɪd /

adjective

1. of or relating to the hyoid bone

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noun

1. the horseshoe-shaped bone that lies at the base of the tongue and above the thyroid cartilage

2. a corresponding bone or group of bones in other vertebrates

Other Word Forms

• posthyoid adjective
• subhyoid adjective
• subhyoidean adjective

Etymology

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

Example Sentences

To do so, Dr. Griffin assembled a team to create a broad comparative dataset of hyoid samples from living lizards, crocodiles, birds, and extinct dinosaurs.

From Science Daily • Dec. 9, 2025

Because no one had previously proven that hyoid bones could reliably preserve growth information, the researchers needed to verify the method before applying it to Nanotyrannus.

From Science Daily • Dec. 9, 2025

Known placoderms have at most five gill arches, others having evolved into jaws and the hyoid, so the pectoral girdle derives from what was once the sixth gill arch, Brazeau’s team concludes.

From Science Magazine • Nov. 1, 2023

Another gill arch eventually evolved into a head bone called the hyoid.

From Science Magazine • Nov. 1, 2023

Having the mandibular arch articulated with the hyoid arch and the cranium, as in the cestraciont sharks; Ð said of a skull.

From Webster's Unabridged Dictionary by Webster, Noah