Words at Play : Top 10 Unusually Long and Interesting Words, Vol. 2
Definition:
extremely prolific; tending to produce offspring, or characterized by love of offspring
About the word:
The Duggars, Octomom, and Mother Goose's old woman who lived in a shoe: all were polyphiloprogenitive. Poly means "many"; philo means "loving"; genitive comes from a word that translates literally as "of generation."