Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Having the shape of a needle: acicular crystals.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Needle-shaped; slender like a needle or bristle.
  • adj. Having sharp points like needles.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Needle-shaped; slender like a needle or bristle, as some leaves or crystals; also, having sharp points like needles.

from The Century Dictionary and Cyclopedia

  • Having the shape of a slender needle or stout bristle; having a sharp point like a needle: as, an acicular prism, like those of stibnite; an acicular bill, as that of a humming-bird. Other forms are aciculate, aciculated, aciculiform, and aciculine.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. narrow and long and pointed; as pine leaves

Etymologies

Latin acicula. (Wiktionary)

Examples

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