aciculae

1 definition found

aciculae - Collaborative International Dictionary of English v.0.48 :

  Acicula \A*cic"u*la\, n.; pl. Acicul[ae]. [L., a small needle,
     dimin. of acus needle.] (Nat. Hist.)
     One of the needlelike or bristlelike spines or prickles of
     some animals and plants; also, a needlelike crystal.
     [1913 Webster]