isonicotine

== English == === Etymology === From iso- +‎ nicotine. === Noun === isonicotine (uncountable) (organic chemistry) A crystalline nitrogenous base (alkali), C10H14N2, isomeric with nicotine. === References === “isonicotine”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.