Lecithin
Pronunciation : Lec"i*thin
Part of Speech : n.
Etymology : [Gr. (Physiol. Chem.)
Definition : Defn: A complex, nitrogenous phosphorized substance widely distributed through the animal body, and especially conspicuous in the brain and nerve tissue, in yolk of eggs, and in the white blood corpuscles.
Source : Webster's Unabridged Dictionary, 1913