Rotula
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 The patella; the kneecap.
- 2 One of the five radial pieces in the dentary apparatus of the sea urchin.
Synonyms
All synonymsEtymology
Learned borrowing from Latin rotula. Doublet of role and roll.
Related phrases
More for "rotula"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.