noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A semicircle.
2. 2
   a plane figure with the shape of half a circle wordnet
3. 3
   A semicircular structure.

Synonyms

All synonyms

crescentquadrantsectorsemicirclesemicirclesextant

Etymology

From hemi- + cycle.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.