noun \ˈhī-ləm\
plural hi·la \-lə\

Definition of HILUM

: a scar on a seed (as a bean) marking the point of attachment of the ovule
: a notch in or opening from a bodily part suggesting the hilum of a bean especially when it is where the blood vessels, nerves, or ducts leave and enter: as a : the indented part of a kidney b : the depression in the medial surface of a lung that forms the opening through which the bronchus, blood vessels, and nerves pass c : a shallow depression in one side of a lymph node through which blood vessels pass and efferent lymphatic vessels emerge

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