Tet″ter (?), n. [OE. teter, AS. teter, tetr; akin to G. zitter, zittermal, OHG. zittaroch, Skr. dadru, dadruka, a sort of skin disease. √63, 240.] (Med.) A vesicular disease of the skin; herpes. See Herpes.
Honeycomb tetter(Med.), favus. — Moist tetter(Med.), eczema. — Scaly tetter(Med.), psoriasis. — Tetter berry(Bot.), the white bryony.