mordacious definition by Webster's New World
Origin: ; from Classical Latin mordax (gen. mordacis), biting ; from base of mordere, to bite: see mordant and amp; -ous
mordacious definition by American Heritage Dictionary
- Given to biting; biting.
- Caustic; sarcastic.
Origin: Latin mordāx, mordāc- (from mordēre, to bite; see mer- in Indo-European roots) + -ious.
- mor·daˈcious·ly adverb
- mor·dacˈi·ty noun