Subscriber login


Forgot your password?

Library card login

Other

caustic

Translate caustic | into French | into German | into Italian | into Spanish
Definition of caustic

adjective

  • 1able to burn or corrode organic tissue by chemical action:a caustic cleaner
  • 2sarcastic in a scathing and bitter way:the players were making caustic comments about the refereeing
  • 3 Physics formed by the intersection of reflected or refracted parallel rays from a curved surface.

noun

  • 1a caustic substance.
  • 2 Physics a caustic surface or curve.

Derivatives

caustically

adverb

causticity

Pronunciation: /-ˈtɪsɪti/
noun

Origin:

late Middle English: via Latin from Greek kaustikos, from kaustos 'combustible', from kaiein 'to burn'

caustic in other Oxford dictionaries

Definition of caustic in the US English dictionary
  |  Cite
Oxford Dictionaries Pro

For Oxford's best resources for writers, plus thesaurus, audio, and 1.9m examples.

Shop for an Oxford dictionary

Find the perfect Oxford dictionary for you in our online shop.
SHOP NOW ►

Word of the day

cur

/ kəː /
noun
an aggressive or unkempt dog …