Definition of "hilum"
noun:
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The eye of a bean or other seed; the mark or scar at the point of attachment of an ovule or seed to its base or support.
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The nucleus of a starch grain.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
A depression or fissure through which ducts, nerves, or blood vessels enter and leave a gland or organ. Also called porta.
from Wiktionary, Creative Commons Attribution/Share-Alike License
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