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Definition of edmontosaurus

edmontosaurus

/ɛdˌmɒntəˈsɔːrəs/
ed · mon · to · sau · rus
Plural:edmontosauruses
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edmontosaurus Lexical Profile

• noun

1

A genus of large, duck-billed herbivorous dinosaur (hadrosaur) that lived in western North America during the Late Cretaceous period, distinguished by its wide, flattened snout and the absence of a bony cranial crest.

Synonyms
View all synonyms for edmontosaurus

• Rhymes for edmontosaurus

• Nearby Words

editorship
editrix
edmonton
edmontosaurus
educable
educate
educated

Word Origin & Etymology

Coined in 1917 by paleontologist Lawrence Lambe. The name derives from the Edmonton Formation (now known as the Horseshoe Canyon Formation) in Alberta, Canada, where the first type specimens were discovered, combined with the Greek word 'sauros', meaning lizard.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Edmontosaurus. In Wordmom Dictionary. Retrieved Nov 6, 2026, from https://wordmom.com/dictionary/edmontosaurus
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