flavin: meaning, definition, pronunciation and examples
C2Technical/Scientific
Quick answer
What does “flavin” mean?
A yellow, water-soluble pigment derived from riboflavin (vitamin B2), which is a key component in certain biological molecules (flavoproteins) involved in oxidation-reduction reactions in cells.
Audio
Pronunciation
Definition
Meaning and Definition
A yellow, water-soluble pigment derived from riboflavin (vitamin B2), which is a key component in certain biological molecules (flavoproteins) involved in oxidation-reduction reactions in cells.
In biochemistry, any of a class of organic compounds based on the isoalloxazine ring system, which serve as the active group in coenzymes essential for energy metabolism and cellular respiration.
Dialectal Variation
British vs American Usage
Differences
No significant differences in usage. Spelling and pronunciation are consistent across scientific English.
Connotations
Purely technical, with no cultural or regional connotations.
Frequency
Extremely rare outside specialized scientific literature in both regions.
Grammar
How to Use “flavin” in a Sentence
The enzyme contains a [flavin] cofactor.Flavin is [essential for] electron transfer.The [oxidation] of the flavin was observed.Vocabulary
Collocations
Examples
Examples of “flavin” in a Sentence
noun
British English
- The flavin's fluorescence indicated its reduced state.
- Researchers isolated the flavin for spectroscopic analysis.
American English
- The enzyme's activity depends on a bound flavin.
- Flavin deficiency can impair mitochondrial function.
Usage
Meaning in Context
Business
Virtually never used.
Academic
Exclusively in biochemistry, molecular biology, and nutritional science research papers and textbooks.
Everyday
Never used in general conversation.
Technical
Core term in enzymology and metabolism studies, e.g., 'The reaction is catalyzed by a flavin-dependent dehydrogenase.'
Vocabulary
Synonyms of “flavin”
Strong
Neutral
Weak
Vocabulary
Antonyms of “flavin”
Watch out
Common Mistakes When Using “flavin”
- Using 'flavin' to mean 'riboflavin' (the full vitamin).
- Misspelling as 'flaven' or 'flavine'.
- Using it as a general term for any yellow pigment.
FAQ
Frequently Asked Questions
No. Riboflavin is vitamin B2. Flavin refers specifically to the yellow, tricyclic isoalloxazine ring system that forms the active part of riboflavin and related coenzymes (FMN, FAD).
In purified form, flavins are yellow crystals. In biological samples, their yellow colour can sometimes be observed, especially in flavoprotein enzymes.
They are vital for life. Flavins act as 'electron shuttles' in numerous metabolic reactions, including energy production (respiration), fatty acid oxidation, and vitamin metabolism.
No. It is a highly specialised scientific term. An average English speaker would not know it unless they have studied biochemistry or nutrition.
A yellow, water-soluble pigment derived from riboflavin (vitamin B2), which is a key component in certain biological molecules (flavoproteins) involved in oxidation-reduction reactions in cells.
Flavin is usually technical/scientific in register.
Flavin: in British English it is pronounced /ˈfleɪvɪn/, and in American English it is pronounced /ˈfleɪvɪn/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[None - technical term]”
Learning
Memory Aids
Mnemonic
Think: FLAVIN is the YELLOW INgredient (from Latin 'flavus' meaning yellow) found in vitamin B2 that fuels cellular power.
Conceptual Metaphor
A FLAVIN is a CHEMICAL BATTERY for biological cells, accepting and donating electrons to power reactions.
Practice
Quiz
In which field is the term 'flavin' primarily used?