Osmaterium
Pronunciation : Os`ma*te"ri*um
Part of Speech : n.;
Etymology : [NL., fr. Gr. (Zo?l.)
Definition : Defn: One of a pair of scent organs which the larv? of certain butterflies emit from the first body segment, either above or below.
pl. Osmateria.
Source : Webster's Unabridged Dictionary, 1913