urethane
noun
ure·thane
ˈyu̇r-ə-ˌthān
variants
or less commonly urethan
1
a
: a crystalline compound C3H7NO2 that is the ethyl ester of carbamic acid and is used especially as a solvent and medicinally as an antineoplastic agent
b
: an ester of carbamic acid other than the ethyl ester
2
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Merriam-Webster unabridged
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