eupyrene

English

Adjective

eupyrene (not comparable)

1. (zoology) Of sperm in species that exhibit sperm heteromorphism, fertile.
   • 2016, Mamoru Watanabe, Sperm Competition in Butterflies, page 55:

     After the completion of copulation, the number of eupyrene sperm bundles in a spermatophore gradually decreased.

Coordinate terms

• apyrene

Related terms

• eusperm