Pronunciation

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  • enPR: kôs'tĭk or kŏs'tĭk, IPA (key): /ˈkɔːstɪk/ or /ˈkɒstɪk/
  • (file)

Adjective

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Positive
caustic

Comparative
more caustic

Superlative
most caustic

  1. If something is caustic, it is capable of burning, corroding or destroying organic tissue.