WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
the quality of being sharply disagreeable in language or tone
noun.
having an acrid smell
noun.
extreme bitterness
Word Usage
"In heating the Indian turnip and other corms, it was found that the heat applied must be sufficient to change the character of the starch or the so-called acridity was not destroyed."