an·iso·spore
| \ (ˈ)aˈnīsəˌspō(ə)r \
plural -s
Definition of anisospore
: a sexual spore exhibiting sexual dimorphism especially of size
—opposed to isospore
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Merriam-Webster unabridged
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Time Traveler for anisospore
The first known use of anisospore was in 1887
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