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.

Noun
indole (plural indoles)
- 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
- Any of the derivatives of indole.
Adjective
indole (comparative more indole, superlative most indole)
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 | |
|---|---|
| plural | indoles |
| Adjective | |
| comparative | more indole |
| superlative | most indole |
Origin of indole
From indigo + Latin oleum (“oil”); see -ole.
Words formed from indole
- azaindole
- azepinoindole
- bisindole
- bromoindole
- diindole
- fendosal
- Fischer indole synthesis
- indisetron
- indolamine
- indolate
- indoleacetic
- indoleacetic acid
- indole alkaloid
- indoleamine
- indolebutyric acid
- indolic
- indolyl
- indoyl
- isoindole
- methylindole
- naphthoylindole
- nitroindole
- phenylindole
- phytoindole
- pyrroloindole
- ropinirole
- spiroindole
- tetraindole
- triindole
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
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.
