hyoid, a. [Gr. fr. the letter e'i^dos form: cf. F. hyoïde.].
-
Having the form of an arch, or of the Greek letter upsilon [1913 Webster]
-
Of or pertaining to the bony or cartilaginous arch which supports the tongue. Sometimes applied to the tongue itself. [1913 Webster]
Hyoid arch (Anat.), the arch of cartilaginous or bony segments, which connects the base of the tongue with either side of the skull. -- Hyoid bone (Anat.), the bone in the base of the tongue, the middle part of the hyoid arch.