Pronunciation : Ar"il
Part of Speech : A*ril"lus
Etymology : [From LL. arilli dry grapes, perh. fr. L. aridus dry: cf. F,. arille.] (Bot.)
Definition : Defn: A exterior covering, forming a false coat or appendage to a seed, as the loose, transparent bag inclosing the seed or the white water lily. The mace of the nutmeg is also an aril. Gray.
Source : Webster's Unabridged Dictionary, 1913