citrulline: meaning, definition, pronunciation and examples
LowTechnical/Scientific
Quick answer
What does “citrulline” mean?
A non-essential amino acid involved in the urea cycle in the human body.
Audio
Pronunciation
Definition
Meaning and Definition
A non-essential amino acid involved in the urea cycle in the human body.
A dietary supplement derived from watermelon or produced synthetically, used to improve blood flow and athletic performance by increasing nitric oxide production.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling is identical.
Connotations
Neutral scientific term in both varieties. In non-specialist contexts, it may carry connotations of bodybuilding or athletic enhancement.
Frequency
Equally low-frequency in both varieties, confined to scientific, medical, and fitness domains.
Grammar
How to Use “citrulline” in a Sentence
Citrulline is converted to [arginine].[Supplementation] with citrulline may improve [performance].Citrulline acts as a [precursor].Vocabulary
Collocations
Examples
Examples of “citrulline” in a Sentence
adjective
British English
- The citrulline pathway is essential.
- A citrulline supplement is popular.
American English
- The citrulline pathway is critical.
- A citrulline supplement is common.
Usage
Meaning in Context
Business
Used in the context of the supplement and health food industry.
Academic
Used in biochemistry, physiology, and sports science papers.
Everyday
Rare. Might be mentioned in conversations about fitness or nutrition supplements.
Technical
Core term in biochemistry (urea cycle) and sports nutrition.
Vocabulary
Synonyms of “citrulline”
Strong
Neutral
Weak
Vocabulary
Antonyms of “citrulline”
Watch out
Common Mistakes When Using “citrulline”
- Mispronunciation: /saɪˈtruːlaɪn/ (incorrect).
- Misspelling: 'citrullin', 'citrullene'.
- Confusing its role with that of arginine.
FAQ
Frequently Asked Questions
Citrulline is a non-essential amino acid, meaning the body can produce it.
Watermelon is the richest natural source, especially in the rind. It is also found in smaller amounts in other cucurbits like cucumbers and pumpkins.
L-citrulline is the pure amino acid. Citrulline malate is L-citrulline bound to malic acid, a compound involved in energy production; this form is common in sports supplements.
For general health, yes. For the specific ergogenic effects studied in sports science, supplementation with concentrated doses is typically used.
A non-essential amino acid involved in the urea cycle in the human body.
Citrulline is usually technical/scientific in register.
Citrulline: in British English it is pronounced /ˈsɪtrʊliːn/, and in American English it is pronounced /ˈsɪtrəˌliːn/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No established idioms]”
Learning
Memory Aids
Mnemonic
Think of 'citrus' + 'melon' → Citrulline is found in watermelons (Citrullus lanatus).
Conceptual Metaphor
A BUILDING BLOCK (for proteins and nitric oxide). A KEY (that unlocks improved blood flow).
Practice
Quiz
What is the primary biochemical role of citrulline in the human body?