butacaine
noun
bu·ta·caine
| \ ˈbyüt-ə-ˌkān, ˌbyüt-ə-ˈ
\
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Medical Definition of butacaine
: a local anesthetic that is an ester of para-aminobenzoic acid and is applied in the form of its white crystalline sulfate (C18H30N2O2)2·H2SO4 to mucous membranes