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Related to hilum: Hilum of kidney, Hilum of lung
a. a scar on the surface of a seed marking its point of attachment to the seed stalk (funicle)
b. the nucleus of a starch grain
2. Anatomy a deep fissure or depression on the surface of a bodily organ around the point of entrance or exit of vessels, nerves, or ducts
Scar on a seed marking the point of detachment from the funiculus.