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The definition of caustic

6 Definitions of: caustic

    1. adjective, capable of burning or corroding by chemical action
    2. adjective, sarcastic; cutting
    3. adjective, of, relating to, or denoting light that is reflected or refracted by a curved surface
    4. noun, Also called: caustic surface a surface that envelopes the light rays reflected or refracted by a curved surface
    5. noun, Also called: caustic curve a curve formed by the intersection of a caustic surface with a plane
    6. noun, chem a caustic substance, esp an alkali
    7. Show me some examples of this word: caustic
    8. Show me the etymology of the word: caustic
Synonyms: burning, corrosive, corrode, astringent, vitriolic, acrid, sarcastic, biting, keen, cutting And more...
Antonyms: kind
 

From Collins

©HarperCollins 2008. Collins English Dictionary definition of caustic