teiid adjective 1noun 1forms 1 adjective1 •Of or belonging to the Teiidae family of tropical American lizards. noun1 •Any lizard in the family Teiidae.The teiids we know today are a New World family, ecological counterparts of Old World lacertids. Historically, teiids had a wider distribution, at least in the Northern Hemisphere. — 2003 formsteiids