Definitions
from The Century Dictionary.
- noun Same as
exospore .
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun botany the
outer layer of apollen grain orspore ; theexine
Etymologies
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Examples
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It has been suggested, and apparently on good grounds, that the spore membrane consists of two layers, the exosporium and the endosporium.
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