资料来源 : Webster's Revised Unabridged Dictionary (1913)

Omphalode \Om"pha*lode\, n. [Omphalo- + Gr. ? form.] (Bot.)
   The central part of the hilum of a seed, through which the
   nutrient vessels pass into the rhaphe or the chalaza; --
   called also {omphalodium}.