2 definitions found From WordNet (r) 2.0 [wn]: acicular adjective: narrow and long and pointed; as pine leaves [syn: {acerate}, {acerose}, {needle-shaped}] From The Collaborative International Dictionary of English v.0.44 [gcide]: Acicular \A*cic"u*lar\, adjective Needle-shaped; slender like a needle or bristle, as some leaves or crystals; also, having sharp points like needles. {A*cic"u*lar*ly}, adverb.

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