Word.ws English Dictionary

indole

/ˈɪndəʊl/US/ˈɪndoʊl/

indole noun: an organic compound, C₈H₇N, found in coal tar, and produced in the gut by the bacterial decomposition of tryptophan; it is an aromatic bicyclic heterocycle having a benzene ring fused with a pyrrole ring; indole and its derivatives occur widely in nature and have many industrial applications.

indole: an organic compound, C₈H₇N, found in coal tar, and produced in the gut by the bacterial...
Image: Public domain, via Wikimedia Commons

Noun

indole (plural indoles)

  1. An organic compound, C₈H₇N, found in coal tar, and produced in the gut by the bacterial decomposition of tryptophan; it is an aromatic bicyclic heterocycle having a benzene ring fused with a pyrrole ring; indole and its derivatives occur widely in nature and have many industrial applications.
    • The Aspidosperma alkaloids are the largest group of indole alkaloids.1990, Song Liu, Syntheses of Aspidosperma Alkaloids, page 2
    • Intakes of indoles or their parental glucosinolates, may have beneficial health effects as well as toxicological effects.1999, Lars Ove Dragsted, Naturally Occurring Antitumourigens, page 41
    Synonyms:
    ketole
  2. Any of the derivatives of indole.

Adjective

indole (comparative more indole, superlative most indole)

  1. (obsolete) guileless

indole meaning in Tamil, Malayalam, Kannada and Arabic

indole in Tamil

இண்டோல்

indole in Malayalam

organic compound
ഇൻഡോൾ iṉḍōḷ

indole in Kannada

organic compound
ಇಂಡೋಲ್ iṇḍōl

indole in Arabic

organic compound
إندول
More languagesFewer languages
indole in Indonesian
indol
indole in Persian
ایندول
indole in Thai
อินโดล

Synonyms of indole

Forms of indole

Noun
pluralindoles
Adjective
comparativemore indole
superlativemost indole

Origin of indole

From indigo + Latin oleum (“oil”); see -ole.

Words formed from indole

Phrases with indole

Questions about indole

What does indole mean?
Indole means an organic compound, C₈H₇N, found in coal tar, and produced in the gut by the bacterial decomposition of tryptophan; it is an aromatic bicyclic heterocycle having a benzene ring fused with a pyrrole ring; indole and its derivatives occur widely in nature and have many industrial applications.
What is indole in Tamil?
Indole in Tamil is இண்டோல். See Indole meaning in Tamil.
What part of speech is indole?
Indole can be a noun or an adjective.
How do you pronounce indole?
Indole is pronounced /ˈɪndəʊl/ (UK).
What is the plural of indole?
The plural of indole is indoles.

Words near indole in the dictionary

  1. indolactams
  2. indolamine
  3. indolamines
  4. indolate
  5. indolates
  6. indole
  7. indole alkaloid
  8. indole alkaloids
  9. indoleacetamide
  10. indoleacetic
  11. indoleacetic acid

Source and license

Adapted from Wiktionary: indole (page history and authors); indole (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-indole.wav.

Cite this entry: “indole.” Word.ws, https://word.ws/indole. Based on Wiktionary, CC BY-SA 4.0.