maiasaur

[ mahy-uh-sawr ]

noun

1. a large hadrosaur, Maiasaura peeblesorum, that is thought to have cared for its young.

Word History and Origins

Origin of maiasaur¹

First recorded in 1985–90; from New Latin Maiasaura genus name; from Greek maîa “good mother (a respectful form of address for an elderly woman), midwife, foster mother” + -saur ( def )