tetraspore

noun

One of four spores produced from a tetrasporangium.

In botany, an asexually produced spore of florideous algæ: so called from the circumstance that usually four are produced by the division of the mother-cell. See spore, cruciate, 2, bispore, Florideæ. Also called spherospore. See cut under Algæ.

A nonsexual spore, one of a group of four regularly occurring in red seaweeds.

Any of the four, asexual spores produced by a sporangium.

One of the four asexual spores produced within a sporangium.