The Collaborative International Dictionary
Infrahyoid
Infrahyoid \In`fra*hy"oid\, a. [Infra + hyoid.] (Anat.) Same as Hyosternal (a) .
Wiktionary
infrahyoid
a. (context anatomy English) Below the hyoid bone in the neck; applied to a group of four pairs of muscles in the anterior part of the neck.