Search Dictionary
Definition of troodon
troodon
/ˈtroʊ.əˌdɑːn/
tro · o · don
Plural:troodons
•Adjective:troodontid
troodon Lexical Profile
CEFR
C1
Grade
8
Tier
3
Usage
Rare
Syllables
3
• noun
1
A genus of small, lightly built, bird-like theropod dinosaur from the Late Cretaceous period of North America, widely recognized for its large eyes, grasping hands, and exceptionally high brain-to-body mass ratio.
Synonyms
View all synonyms for troodonWord Nuance & Usage
While historically popular in dinosaur literature, 'Troodon' is increasingly considered a dubious genus (nomen dubium) by modern paleontologists, with many fossils historically assigned to it now reclassified under 'Stenonychosaurus' or 'Latenivenatrix'.
Word Origin & Etymology
Coined in 1856 by American paleontologist Joseph Leidy from the Greek words 'trōō' (to wound) and 'odōn' (tooth), referring to the dinosaur's prominently serrated teeth.
Usage Trend
Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Troodon. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/troodon