Definition of Mamenchisaurus in US English:

Mamenchisaurus

noun

  • A Chinese genus of sauropod dinosaurs of the Jurassic period, characterized by exceptionally long necks and related to the diplodocids, though now usually placed in a separate family; a dinosaur of this genus.

Origin

1950s; earliest use found in Scientia Sinica. From scientific Latin Mamenchisaurus, genus name from Chinese Mǎménqī (also transliterated Mamenchi), the name of a place in the Yibin region of Sichuan province, China, where fossil remains were found + -saurus.

Pronunciation

Mamenchisaurus

/məmɛŋkɪˈsɔːrəs/