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acidic

American  
[uh-sid-ik] / əˈsɪd ɪk /

adjective

  1. acid.

  2. Geology. acid.

  3. acid-forming.

  4. containing acid-bearing pollutants.

    Acidic runoff is poisoning the nation's rivers.
acidic British  
/ əˈsɪdɪk /

adjective

  1. another word for acid

  2. (of an oxide) yielding an acid in aqueous solution

"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

Other Word Forms

  • nonacidic adjective
  • semiacidic adjective
  • unacidic adjective

Etymology

Origin of acidic

First recorded in 1875–80; acid + -ic

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.