Definition of macrospore in English:

macrospore

noun

  • 1Botany and Mycology. The larger of the two types of spore produced by a heterosporous plant (now usually called megaspore).

  • 2Biology. A large spore (usually the larger of two types of spore) produced by various protoctists.

Origin

Mid 19th century; earliest use found in Todd's Cyclopaedia of Anatomy and Physiology. From macro- + spore. Compare French macrospore.

Pronunciation

macrospore

/ˈmakrə(ʊ)spɔː/