citrin: meaning, definition, pronunciation and examples
Rare / ObsoleteTechnical / Historical (Biochemistry, Nutrition)
Quick answer
What does “citrin” mean?
A flavonoid, a vitamin P factor, once considered a vitamin and found in citrus fruit rinds.
Audio
Pronunciation
Definition
Meaning and Definition
A flavonoid, a vitamin P factor, once considered a vitamin and found in citrus fruit rinds.
Historically, a substance (a mixture of bioflavonoids like hesperidin) believed to maintain capillary health, now not classified as a true vitamin. Can also rarely refer to a yellow pigment or a type of quartz (citrine).
Dialectal Variation
British vs American Usage
Differences
No significant differences in usage; the term is equally obsolete in both varieties.
Connotations
Historical, outdated scientific terminology.
Frequency
Extremely rare in contemporary use in both regions.
Grammar
How to Use “citrin” in a Sentence
The obsolete vitamin ~~, a bioflavonoid found in~ content ofVocabulary
Collocations
Examples
Examples of “citrin” in a Sentence
adjective
British English
- The citrin research from the 1930s is fascinating.
- They studied the citrin properties.
American English
- Early research on citrin activity was promising.
- A citrin deficiency was hypothesized.
Usage
Meaning in Context
Business
Not used.
Academic
Only in historical reviews of nutrition science.
Everyday
Virtually never used.
Technical
Obsolete term; modern texts use 'bioflavonoids'.
Watch out
Common Mistakes When Using “citrin”
- Using it as a current scientific term.
- Confusing it with 'citrine' (the gemstone) in spelling or meaning.
FAQ
Frequently Asked Questions
No, it is not. 'Citrin' or 'vitamin P' is an obsolete term. The substances it referred to are now classified as bioflavonoids, which are not considered essential vitamins.
Almost exclusively in historical texts about nutrition, old scientific papers, or in discussions about the history of vitamin discovery.
Citrin (or vitamin P) is a historical biochemical term. Citrine is a yellow variety of quartz, a semi-precious gemstone. They are different words with different meanings.
It is not recommended. You should use contemporary, precise terms like 'bioflavonoids', 'flavonoids', or specify compounds like 'hesperidin'. Using 'citrin' would mark your writing as outdated or imprecise.
A flavonoid, a vitamin P factor, once considered a vitamin and found in citrus fruit rinds.
Citrin is usually technical / historical (biochemistry, nutrition) in register.
Citrin: in British English it is pronounced /ˈsɪtrɪn/, and in American English it is pronounced /ˈsɪtrɪn/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think CITRus + vitamIN = CITRIN, the old vitamin from citrus peels.
Conceptual Metaphor
HEALTH IS A SUBSTANCE (an outdated conceptualisation where a single substance was believed to confer capillary strength).
Practice
Quiz
What is the modern status of the term 'citrin' in nutritional science?