First Known Use: 1962
Dictionary
deet
noun, often all capitalized \ˈdēt\
Definition of DEET
: a colorless oily liquid insect and tick repellent C12H17NO
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Origin of DEET
probably from d. e. t., from di- + ethyl + toluamide (C8H9NO)
Medical Dictionary
deet
noun , often all capitalized \ˈdēt\
Medical Definition of DEET
: a colorless oily liquid insect and tick repellent C12H17NO
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