Search Result for "megaspore": 
Wordnet 3.0

NOUN (1)

1. larger of the two types of spore produced in heterosporous plants; develops in ovule into a female gametophyte;
[syn: megaspore, macrospore]



WordNet (r) 3.0 (2006):

megaspore
    n 1: larger of the two types of spore produced in heterosporous
         plants; develops in ovule into a female gametophyte [syn:
         megaspore, macrospore]