noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Anything crescent-shaped; a crescent-shaped part or mark; a lunula or lune.
2. 2
   the crescent-shaped area at the base of the human fingernail wordnet
3. 3
   An area in front of the beak of many bivalve shells, sometimes shaped like a double crescent, but more often heart-shaped.

Synonyms

All synonyms

crescenthalf moonhalf-moonlunulameniscussemicircle

Etymology

Borrowed from French lunule, from Latin lūnula, diminutive of lūna (“moon”).

Related phrases

heart shaped

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