FISSIPAROUS Meaning of FISSIPAROUS in English adj. 1 Biol. reproducing by fission. 2 tending to split. fissiparity n. fissiparously adv. fissiparousness n.[ L fissus past part. (as FISSURE) after viviparous ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012