Mid 19th century; earliest use found in Robert Mayne (1808–1868). From oligo- + -spermous; compare French †oligosperme, scientific Latin oligosperma, ancient Greek ὀλιγόσπερμος.
Definition of oligospermous in US English:
oligospermous
adjective
Botany rare
Containing or producing few seeds.
Origin
Mid 19th century; earliest use found in Robert Mayne (1808–1868). From oligo- + -spermous; compare French † oligosperme, scientific Latin oligosperma, ancient Greek ὀλιγόσπερμος.