Aciculate \A*cic"u*late\, Aciculated \A*cic"u*la"ted\a. (Nat. Hist.) (a) Furnished with acicul[ae]. (b) Acicular. (c) Marked with fine irregular streaks as if scratched by a needle. --Lindley.
aciculate adj : related to plants or animals or crystals having aciculae or needle-like parts