- slightly sour.
- sharp; caustic: his acidulous criticism of the book.
- moderately acid or tart; subacid.
Origin of acidulous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for acidulous
She is an acidulous maiden person with ultra-ritualistic tendencies.The Spenders
Harry Leon Wilson
She might marry or might miss, or grow into an acidulous red-headed woman.The Wind Bloweth
Brian Oswald Donn-Byrne
Sudden, thunderous outpourings of acidulous and gluey fluid.After the Rain
Fragrant; golden yellow; tastes oily, acidulous, and resinous.
The product is yellowish and acidulous, from the presence of acetic acid.
- rather sour
- sharp or sour in speech, manner, etc; acid
C18: from Latin acidulus sourish, diminutive of acidus sour
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 acidulous
1769, "sub-acidic," used figuratively for "sour-tempered;" from Latin acidulus "slightly sour," a diminutive of acidus (see acid (adj.)).
Online Etymology Dictionary, © 2010 Douglas Harper
- Slightly acid or sour.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.