Hī'lum, n.

noun

n. [Lat., a little thing, trifle; according to Festus, “Hilum putant esse quod grano fabo adhaeret.”] (Bot.) The eye of a bean or other seed; the mark or scar of the point of attachment of an ovule or seed to its base. [Written also hile.] Martyn.

A rounded seed with a visible hilum, the scar where it was attached.
Hilum.