a combining form with the meanings “vinegar,” “acetic acid,” used in the formation of compound words (acetometer), especially in the names of chemical compounds in which acetic acid or the acetyl group is present (acetophenetidin).
- acetic anhydride,
- acetic ether,
- acetoacetic acid,
- acetohydroxamic acid
Also especially before a vowel, acet-.
Origin of aceto-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
before a vowel acet-
containing an acetyl group or derived from acetic acidacetone
Word Origin for aceto-
from Latin acētum vinegar
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
before vowels acet-, word-forming element from comb. form of acetic and generally indicating compounds from or related to acetic acid.
Online Etymology Dictionary, © 2010 Douglas Harper
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.