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[as-i-toh-nahy-tril, -treel, uh-see-toh-]
noun Chemistry.
  1. a colorless, poisonous, water-soluble liquid, C2H3N, having an etherlike odor: used chiefly in organic synthesis and as a solvent.
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Origin of acetonitrile

First recorded in 1865–70; aceto- + nitrile
Also called methyl cyanide.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for acetonitrile

Historical Examples

  • These experiments with alcohol and acetonitrile are of interest in another connection.

    Alcohol: A Dangerous and Unnecessary Medicine, How and Why

    Martha M. Allen