alkaloid
/ˈæl.kə.lɔɪd/
alkaloid noun: any of many organic (often heterocyclic) bases that occur in nature and often have medicinal properties.
Noun
alkaloid (plural alkaloids)
- Any of many organic (often heterocyclic) bases that occur in nature and often have medicinal properties.
- The Aspidosperma alkaloids are the largest group of indole alkaloids.1990, Song Liu, Syntheses of Aspidosperma Alkaloids, page 2
- Xanthosine, the initial substrate of purine alkaloid synthesis, is supplied by at least four different pathways […]2010, Bertil B. Fredholm, Methylxanthines
Adjective
alkaloid (comparative more alkaloid, superlative most alkaloid)
- Relating to, resembling, or containing alkali.
alkaloid meaning in Tamil, Kannada, Arabic and Indonesian
alkaloid in Tamil
- காரப்போலி, ஆல்க்கலாய்டு, அற்கலோயிட்டு, அல்கலாய்டு
alkaloid in Kannada
- ಕಾರಪರಿಜು
alkaloid in Arabic
- organic heterocyclic base
- قَلْوَانِيّ qalwāniyy
alkaloid in Indonesian
- organic heterocyclic base
- alkaloid
Examples of alkaloid in a sentence
- The alkaloids cytisine and sparteine are derivatives of quinolizidine.
- Instead, its main active ingredient is a xanthine alkaloid known as mateine.
- Caffeine is a xanthine alkaloid compound that acts as a stimulant in humans.
Forms of alkaloid
| Noun | |
|---|---|
| plural | alkaloids |
| Adjective | |
| comparative | more alkaloid |
| superlative | most alkaloid |
Origin of alkaloid
From alkali + -oid. Compare French alcaloïde.
Words formed from alkaloid
Questions about alkaloid
- What does alkaloid mean?
- Alkaloid means any of many organic (often heterocyclic) bases that occur in nature and often have medicinal properties.
- What is alkaloid in Tamil?
- Alkaloid in Tamil is காரப்போலி, ஆல்க்கலாய்டு, அற்கலோயிட்டு. See Alkaloid meaning in Tamil.
- What part of speech is alkaloid?
- Alkaloid can be a noun or an adjective.
- How do you pronounce alkaloid?
- Alkaloid is pronounced /ˈæl.kə.lɔɪd/ (US).
- What is the plural of alkaloid?
- The plural of alkaloid is alkaloids.
Words near alkaloid in the dictionary
Source and license
Adapted from Wiktionary: alkaloid (page history and authors); alkaloid (Tamil Wiktionary) (page history and authors); alkaloid (Kannada 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-alkaloid.wav, LL-Q1860 (eng)-Wodencafe-alkaloid.wav.
Cite this entry: “alkaloid.” Word.ws, https://word.ws/alkaloid. Based on Wiktionary, CC BY-SA 4.0.