noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   One of the needlelike or bristlelike spines or prickles of some animals and plants; also, a needlelike crystal.
2. 2
   a needlelike part or structure of a plant or animal or crystal; as a spine or bristle or crystal wordnet

Synonyms

All synonyms

acicleacicle

Etymology

Unadapted borrowing from Latin acicula (“pin for a head-dress”)

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