acicula
A*cic"u*la, n.; pl. Aciculæ. Etym: [L., a small needle, dimin. of acus needle.] (Nat. Hist.) Defn: One of the needlelike or bristlelike spines or prickles of some animals and plants; also, a needlelike crystal.
A*cic"u*la, n.; pl. Aciculæ. Etym: [L., a small needle, dimin. of acus needle.] (Nat. Hist.) Defn: One of the needlelike or bristlelike spines or prickles of some animals and plants; also, a needlelike crystal.