acetate

[ as-i-teyt ]

noun

1. Chemistry. a salt or ester of acetic acid.
2. Also called acetate rayon. a synthetic filament, yarn, or fabric composed of a derivative of the acetic ester of cellulose, differing from viscose rayon in having greater strength when wet and greater sensitivity to high temperatures.
3. a sheet of clear plastic film fastened over the front of artwork for protection, as an overlay, or the like.
4. a slow-burning base material, cellulose triacetate, used for motion-picture film to minimize fire hazard during projection, and also for animation cells.

acetate

/ ˈæsɪˌteɪt /

noun

1. any salt or ester of acetic acid, containing the monovalent ion CH 3 COO ^–or the group CH 3 COO- Systematic nameethanoate
2. modifier consisting of, containing, or concerned with the group CH 3 COO-

   acetate group or radical

3. See cellulose acetate, acetate rayon
   short for acetate rayon cellulose acetate
4. a sound recording disc composed of an acetate lacquer coating on an aluminium or plastic base: used for demonstration or other short-term purposes

acetate

/ ăs′ĭ-tāt′ /

1. A salt or ester of acetic acid. Salts of acetic acid contain a metal attached to the acetic acid radical CH 3 COO. Esters contain another radical, such as ethyl, attached to the acetic acid radical.
2. Cellulose acetate or a product made from it, especially fibers or film.

Derived Forms

• ˈaceˌtated, adjective

Word History and Origins

Origin of acetate¹

First recorded in 1820–30; acet- + -ate ²

Word History and Origins

Origin of acetate¹

C19: from acetic + -ate ¹

Example Sentences

A record would spend years in larval form as an acetate, the big waxy master from which copies were made.

From The Daily Beast

Once both tracks hit acetate, a master record was sent to URP for pressing.

From The Daily Beast

The prototypes are built from a recyclable flat foam-rubber called ethylene vinyl acetate (EVA).

From The Daily Beast

This fluid is then heated, adding crystals of sodium acetate until it becomes perfectly clear.

From Project Gutenberg

A portion of the yellow filtrate gave a reddish yellow precipitate with lead acetate.

From Project Gutenberg

A precipitate obtained by adding lead acetate to a filtered solution of the original substance in 50 per cent.

From Project Gutenberg

To the filtrate was added an excess of a solution of lead acetate in 50 per cent.

From Project Gutenberg

The poison, if precipitated at all by lead acetate, must have gone down in one of the preceding fractions.

From Project Gutenberg