SINCE 1828
locant
noun
lo·cant
| \
ˈlōkənt \
plural -s
Definition of locant
: the portion of a chemical name that designates the position of an atom or group in a molecule (as β- in β-naphthylamine, m- in m-xylene, 2- in 2-butanol, or 1- in glucose-1-C14)
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