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caustic

adjective (CHEMICAL)
 
 
/ˈkɔː.stɪk/ US  /ˈkɑː-/

Definition

describes a chemical that burns or destroys things, especially anything made of living cells: a caustic substanceTypes of chemicalSpecific chemicals, chemical compounds and gasesSubstances and structures in the body
(Definition of caustic adjective (CHEMICAL) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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