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acicular

[uh-sik-yuh-ler]
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adjective
  1. shaped like a needle.
  2. Metallurgy.
    1. (of cast iron) containing ferrite in a needlelike form.
    2. (of an alloy) having a microstructure of needlelike components.
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Origin of acicular

First recorded in 1785–95; acicul(a) + -ar1
Related formsa·cic·u·lar·i·ty [uh-sik-yuh-lar-i-tee] /əˌsɪk yəˈlær ɪ ti/, nouna·cic·u·lar·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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