Word Study
aril
CIDE DICTIONARY
aril, n. [From LL. arilli dry grapes, perh. fr. L. aridus dry: cf. F,. arille.].
A exterior covering, forming a false coat or appendage to a seed, as the loose, transparent bag inclosing the seed of the white water lily. The mace of the nutmeg is also an aril. Gray. [1913 Webster]
OXFORD DICTIONARY
aril, n. Bot. an extra seed-covering, often coloured and hairy or fleshy, e.g. the red fleshy cup around a yew seed.
Derivative
arillate adj.
Etymology
mod.L arillus: cf. med.L arilli dried grape-stones
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