'Nucellus' definitions:

Definition of 'nucellus'

(from WordNet)
noun
Central part of a plant ovule; contains the embryo sac

Definition of 'Nucellus'

From: GCIDE
  • Nucellus \Nu*cel"lus\, n.; pl. Nucelli. [NL., dim. of nux, nucis, a nut.] (Bot.) See Nucleus, 3 (a) . [1913 Webster]