Definition of acetate in English:

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Pronunciation: /ˈasəˌtāt/


1 Chemistry A salt or ester of acetic acid, containing the anion CH3COO or the group —OCCH3.
Example sentences
  • Benzyl acetate, from acetic acid, has a jasmine odor.
  • As the hydrogen ion concentration increases, the acetate concentration and acetic acid concentration must adjust for the value of the equilibrium constant to be maintained.
  • These may contain solvents such as toluene, isopropryl alcohol, ethyl and butyl acetates, acetone and other ketones.
2Cellulose acetate, especially as used to make textile fibers or plastic: [as modifier]: acetate silk
More example sentences
  • It may be mentioned that the company is credited with many firsts - introduction of pre-wash, wrinkle-free, golf-ball-wash, stain- and wrinkle-free, stretchable and celanese acetate fibre garments.
  • Floppy disk platters are, well, thin and floppy and made of acetate plastic.
  • EVITA PERONI products made out of plastic, nylon or acetate can be gently washed with warm water and then dried with a soft cloth.
2.1A transparency made of cellulose acetate film.
Example sentences
  • TRANSPARENCY TRACINGS Transparency tracing of wound surface area consists of outlining the wound perimeter on acetate transparent film.
  • Root growth was recorded by tracing on an acetate film.
  • It's important to use the kind that is compatible with the equipment you are using to get the images on the acetate or transparency.
2.2A recording disk coated with cellulose acetate.
Example sentences
  • I find it interesting to compare contemporary pianists’ playing to the composer's, since we do have recordings of the source - piano rolls, radio recordings, private acetates.
  • Several of these recordings are acetates or test pressings that exist in only a single copy.
  • I have an old acetate recording of this marvellous performance.


Late 18th century: from acetic + -ate1.

Words that rhyme with acetate

capacitate, triacetate

For editors and proofreaders

Syllabification: ac·e·tate

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