Gym`no·sper'mous (-spẽr'mŭs) adjective [ Greek gymno`spermos ; gymno`s naked + spe`rma seed: confer French gymnosperme .] (Botany) (a) Having naked seeds, or seeds not inclosed in a capsule or other vessel. (b) Belonging to... Found on http://www.encyclo.co.uk/webster/G/70