Acetate

n. salt or ester of acetic acid (Chemistry); fabric made of acetate fibers; sheet of clear plastic film; phonographic disk made of or coated with acetate; fire-resistant material used as the base for film

An acetate, or ethanoate, is a salt or ester of acetic acid.
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Acetate /ac·e·tate/ any salt of acetic acid. ac·e·tate n. A salt or ester of acetic acid containing the radical group CH 3 COO. acetate, n 1. [more]Acetate - Community and Resources

Noun
1. a salt or ester of acetic acid
(synonym) ethanoate
(hypernym) salt
(hyponym) lead acetate, sugar of lead
2. a fabric made from cellulose acetate fibers
(synonym) acetate rayon
(hypernym) rayon
(substance-meronym) cellulose acetate

n. acetate, salt of acetic acid