The Collaborative International Dictionary
Theroid
Theroid \The"roid\, a. [Gr. qh`r, qhro`s, wild beast + -oid.] (Med.) Resembling a beast in nature or habit; marked by animal characteristics; as, theroid idiocy.
Wiktionary
theroid
Etymology 1 a. bestial, resembling an animal. Etymology 2
n. (obsolete spelling of lang=en thyroid)