acicula Meaning, Definition & Usage

  1. noun a needlelike part or structure of a plant or animal or crystal; as a spine or bristle or crystal

WordNet

A*cic"u*la noun
Etymology
L., a small needle, dimin. of acus needle.
Wordforms
plural Aciculæ
Definitions
  1. (Nat. Hist.) One of the needlelike or bristlelike spines or prickles of some animals and plants; also, a needlelike crystal.

Webster 1913