- Chemistry. a salt or ester of acetic acid.
- 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.
- a sheet of clear plastic film fastened over the front of artwork for protection, as an overlay, or the like.
- a slow-burning base material, cellulose triacetate, used for motion-picture film to minimize fire hazard during projection, and also for animation cells.
Origin of acetate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for acetate
A record would spend years in larval form as an acetate, the big waxy master from which copies were made.The Stacks: How Leonard Chess Helped Make Muddy Waters
August 2, 2014
The weighting agents most generally used are sugar and acetate of lead.Textiles
William H. Dooley
The cotton is first steeped in a bath of acetate of lead of about 10° Tw.The Dyeing of Cotton Fabrics
Acetate of lead may also be found as a constituent of various eye-waters.
Acetate of Lead is contained in a pill, a suppository, and an ointment.
Verdigris is an acetate of copper, or a mixture of acetates.
- any salt or ester of acetic acid, containing the monovalent ion CH 3 COO – or the group CH 3 COO-Systematic name: ethanoate
- (modifier) consisting of, containing, or concerned with the group CH 3 COO-acetate group or radical
- short for acetate rayon, cellulose acetate
- a sound recording disc composed of an acetate lacquer coating on an aluminium or plastic base: used for demonstration or other short-term purposes
C19: from acetic + -ate 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for acetate
Online Etymology Dictionary, © 2010 Douglas Harper
- A salt or ester of acetic acid containing the radical group CH3COO.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A salt or ester of acetic acid. Salts of acetic acid contain a metal attached to the acetic acid radical CH3COO. Esters contain another radical, such as ethyl, attached to the acetic acid radical.
- Cellulose acetate or a product made from it, especially fibers or film.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.