UMBIL'ICAL, a. [L. umbilicus, the navel.] Pertaining to the navel; as umbilical vessels; umbilical region. Umbilical points, in mathematics, the same as foci.Umbilical vessels, in vegetables, are the small vessels which pass from the heart of the seed into the side seed-lobes, and are supposed to imbibe the saccharine, farinaceous or oily matter which is to support the new vegetable in its germination and infant growth.
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