A very large, herbivorous dinosaur of the late Jurassic period, with a long neck and tail; now more commonly referred to as apatosaurus.
bronto+saur
Shared component: bronto · thunder
OpenEtymologyWORD FAMILY
bronto
thunder
Related forms: bronto · 2 words in this dictionary
Related words
Shared components, not spelling prefixesA very large herbivorous dinosaur with a long neck and tail and a small head.
bronto+saurus
Shared component: bronto · thunder