macrospore

Other forms: macrospores

Definitions of macrospore
  1. noun
    larger of the two types of spore produced in heterosporous plants; develops in ovule into a female gametophyte
    synonyms: megaspore
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    type of:
    spore
    a small usually single-celled asexual reproductive body produced by many nonflowering plants and fungi and some bacteria and protozoans and that are capable of developing into a new individual without sexual fusion
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