amphibiotic

adjective
am·phi·bi·ot·ic | \¦amfə̇ˌbī¦ätik\

Definition of amphibiotic 

: terrestrial in the adult stage but aquatic as a larva or nymph

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First Known Use of amphibiotic

1885, in the meaning defined above

History and Etymology for amphibiotic

International Scientific Vocabulary amphi- + -biotic

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The first known use of amphibiotic was in 1885

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