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Learner's Dictionary
caustic
2 ENTRIES FOUND:
caustic
(adjective)
caustic soda
(noun)
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caustic
/
ˈ
kɑːstɪk/
adjective
caustic
/
ˈ
kɑːstɪk/
adjective
Learner's definition of CAUSTIC
[
more caustic; most caustic
]
1
:
able to destroy or burn something by chemical action
The chemical was so
caustic
that it ate through the pipes.
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2
:
very harsh and critical
caustic
film reviews
She wrote a
caustic
report about the decisions that led to the crisis.
caustic
humor/wit
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— caustically
/
ˈ
kɑːstɪkli/
adverb
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