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Definition of tyrannosaurus

tyrannosaurus

/tɪˌræn.əˈsɔːr.əs/
ty · ran · no · sau · rus
Plural:tyrannosauruses
•
Adjective:tyrannosaurian
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tyrannosaurus Lexical Profile

tyrannosaurus Game Scores & Validity

• noun

1

A genus of massive, bipedal, carnivorous theropod dinosaurs from the Late Cretaceous period, native to western North America, characterized by a massive skull, powerful jaws, and very short forelimbs.

Synonyms
View all synonyms for tyrannosaurus

Word Nuance & Usage

While formally capitalized as a scientific genus name in taxonomy, it is widely used as a lowercase common noun in everyday English.

• Rhymes for tyrannosaurus

• Nearby Words

tyrannical
tyrannically
tyrannize
tyrannosaurus
tyrannously
tyranny
tyrant

Word Origin & Etymology

Coined in 1905 by paleontologist Henry Fairfield Osborn from the Ancient Greek 'tyrannos' (tyrant) and 'sauros' (lizard), reflecting its position as a massive apex predator.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

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