1. (n.) An extinct, hairy, maned elephant (Elephas primigenius), of enormous size, remains of which are found in the northern parts of both continents. The last of the race, in Europe, were coeval with prehistoric man.

2. (a.) Resembling the mammoth in size; very large; gigantic; as, a mammoth ox.

Atlantean Brobdingnagian Cyclopean Gargantuan Herculean Homeric Jumbo abysmal ammonite amplitudinous ankylosaur archaeohippus archaeotherium archelon arthrodiran astronomic astronomical aurochs awesome bothriolepis boundless brachiosaur brontops brontothere bulky coccostean coelodont colossal compsognathus coryphodon cosmic cotylosaur creodont crossopterygian cynodictis diatryma dimetrodon dinichthyid dinosaur dinothere diplodocus duck-billed dinosaur edaphosaurid elasmosaur elephant elephantine enormous epic eryopsid eurypterid extensive galactic gargantuan giant giant sloth giantlike gigantic glyptodont hadrosaur hathi heroic hippo hippopotamus huge immeasurable immense infinite jumbo king-size large leviathan massive massy mastodon mighty monster monstrous monumental mountainous outsize overgrown pachyderm palaeodictyopteron palaeoniscid palaeophis palaeosaur palaeospondylus pelycosaur phytosaur plesiosaur prodigious profound protoceratops protylopus pteranodon pteraspid pterichthys pterodactyl pterosaur rhino rhinoceros river horse sauropod scelidosaur sizable smilodon spacious stupendous titanic titanosaur towering trachodon tremendous triceratops trilobite tyrannosaur uintathere urus vast voluminous weighty whale woolly mammoth