acetate

noun4

1. •
   Any ester or salt of acetic acid.

   • […] to pad a piece in diluted acetate of alumine to obtain a pale lemon ground […] — 1819
2. •
   Cellulose acetate.

   • Performers use acetate because eyelash glue is not available. They create eyelashes out of horse hair or cut from carbon paper. Their nails are glued on with a shoe adhesive. — 2007
3. •
   A transparent sheet used for overlays, whether of cellulose acetate or (loosely) any macroscopically similar plastic.
4. •
   Ellipsis of acetate disc (A disc of aluminium covered in a wax used to make demonstration copies of a phonograph record)