vicinal

adjective vic·i·nal \ˈvi-sə-nəl, ˈvis-nəl\

Definition of VICINAL

: of or relating to a limited district : local

: of, relating to, or substituted in adjacent sites in a molecule <a vicinal disulfide group>

Latin vicinalis, from vicinus neighbor, from vicinus, adjective, neighboring

First Known Use: circa 1623

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