acetate

Formed from the root of Latin acētum (“vinegar”) ( +‎ -ate), from aceō (“I am sour”); surface analysis, acet- +‎ -ate.

• IPA^(key): /ˈæsɪteɪ̯t/

• Audio (US)

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acetate (plural acetates)

1. (organic chemistry) Any salt or ester of acetic acid.

   Synonym: ethanoate

2. Cellulose acetate.
3. A transparent sheet used for overlays.
4. Ellipsis of acetate disc.: a disc of aluminium covered in a wax used to make demonstration copies of a phonograph record.

   Coordinate term: dubplate

   • 2002, Dave Thompson, The Music Lover's Guide to Record Collecting, Hal Leonard Corporation (→ISBN), Acetates—The Rock Star's Rough Draft:

     Acetates are a relic of the days before cassettes, DAT, and recordable CDs came into widespread use in recording studios. Manufactured from aluminum, and coated in a thin sheet of vinyl, they were produced to allow the concerned parties to hear how a particular version of a recording would sound outside the studio, on their home hi-fi, for example.

• acetic acid (coordinate as an acid versus a base, but synonymous in the practical sense that the conjugate base and conjugate acid coexist in solution)

• acetate on Wikipedia.Wikipedia
• acetate disc on Wikipedia.Wikipedia