[ an-l-in, -ahyn ]
/ ˈæn l ɪn, -ˌaɪn /


Also called aniline oil, aminobenzine, phenylamine. Chemistry. a colorless, oily, slightly water-soluble liquid, C6H5NH2, usually derived from nitrobenzene by reduction: used chiefly in the synthesis of dyes and drugs.


pertaining to or derived from aniline: aniline colors.

Nearby words

  1. anik,
  2. anil,
  3. anile,
  4. anilide,
  5. anilinction,
  6. aniline black,
  7. aniline blue,
  8. aniline dye,
  9. aniline hydrochloride,
  10. anilingus

Also an·i·lin [an-l-in] /ˈæn l ɪn/.

Origin of aniline

First recorded in 1840–50; anil + -ine2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for aniline

British Dictionary definitions for aniline


/ (ˈænɪlɪn, -ˌliːn) /


a colourless oily pungent poisonous liquid used in the manufacture of dyes, plastics, pharmaceuticals, and explosives. Formula: C 6 H 5 NH 2Also called: phenylamine
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for aniline



chemical base used in making colorful dyes, 1843, coined 1841 by German chemist Carl Julius Fritzsche (1808-1871) and adopted by Hofmann, ultimately from Portuguese anil "the indigo shrub," from Arabic an-nil "the indigo," assimilated from al-nil, from Persian nila, ultimately from Sanskrit nili "indigo," from nilah "dark blue." With chemical suffix -ine (2).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for aniline



An oily, poisonous benzene derivative used in the manufacture of dyes and pharmaceuticals.


Derived from aniline.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for aniline


[ ănə-lĭn ]

A colorless, oily, poisonous compound used in the manufacture of rubber, dyes, resins, pharmaceuticals, and varnishes. Aniline is an amine of benzene. Chemical formula: C6H7N.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.