The Collaborative International Dictionary
Superfecundity
Superfecundity \Su`per*fe*cun"di*ty\, n. Superabundant fecundity or multiplication of the species.
Wiktionary
superfecundity
n. 1 (context biology English) The tendency of organisms to produce more offspring than can possibly survive. The geometric growth of a biological population beyond the resources of the environment. 2 (context biology English) Superabundant fecundity or multiplication of the species.