The Collaborative International Dictionary of English v.0.48:
Acetate \Ac"e*tate\, n. [L. acetum vinegar, fr. acere to be sour.] (Chem.) A salt formed by the union of acetic acid with a base or positive radical; as, acetate of lead, acetate of potash. [1913 Webster]WordNet (r) 3.0 (2006):
acetate n 1: a salt or ester of acetic acid [syn: acetate, ethanoate] 2: a fabric made from fibers of cellulose acetate [syn: acetate rayon, acetate]