glutamine: meaning, definition, pronunciation and examples
C1/C2 (Low-frequency specialist term)Formal, technical, scientific
Quick answer
What does “glutamine” mean?
A crystalline, non-essential amino acid found in many proteins and important in cellular metabolism.
Audio
Pronunciation
Definition
Meaning and Definition
A crystalline, non-essential amino acid found in many proteins and important in cellular metabolism.
In biochemistry and nutrition, it is a conditionally essential amino acid during metabolic stress, used as a dietary supplement, and a substrate for the synthesis of neurotransmitters. It is also a key component in cell culture media.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or semantic differences. Spelling and pronunciation are consistent. Usage context (sports supplements, clinical nutrition) is identical.
Connotations
Neutral scientific term in both varieties. In supplement marketing contexts, may carry connotations of muscle recovery or gut health.
Frequency
Equally low-frequency in general discourse, but equally common in specialist scientific fields in both regions.
Grammar
How to Use “glutamine” in a Sentence
Glutamine is [verb] (e.g., synthesized, used, depleted).[Subject] contains/is high in/is a source of glutamine.Supplementation with glutamine may [effect].Vocabulary
Collocations
Examples
Examples of “glutamine” in a Sentence
adjective
British English
- The glutamine pathway is under investigation.
- Glutamine metabolism was measured.
American English
- Glutamine supplementation is common.
- They studied glutamine levels in the serum.
Usage
Meaning in Context
Business
In the marketing of sports nutrition supplements and certain medical foods.
Academic
Core term in biochemistry, physiology, and medical research papers.
Everyday
Rare, except among athletes, bodybuilders, or individuals with specific dietary/medical interests.
Technical
Precise term in laboratory protocols, clinical nutrition guidelines, and pharmaceutical formulations.
Vocabulary
Synonyms of “glutamine”
Strong
Weak
Watch out
Common Mistakes When Using “glutamine”
- Misspelling as 'gluctamine', 'glutamin', or 'glutemine'.
- Confusing it with glutamate or glutathione, which are related but distinct molecules.
- Using it as a countable noun (e.g., 'a glutamine') instead of an uncountable one.
FAQ
Frequently Asked Questions
It is traditionally classified as a non-essential amino acid because the body can synthesize it. However, under conditions of severe stress, injury, or illness, it may become 'conditionally essential' and require dietary intake.
Protein-rich foods like meat, poultry, fish, eggs, dairy products (like milk and yoghurt), beans, and certain vegetables like cabbage and spinach.
Glutamine refers to the general amino acid. L-glutamine is the specific, biologically active form found in proteins and used by the body. Supplements and discussions in nutrition almost always refer to L-glutamine.
Theoretically, to support immune function, reduce muscle soreness, and aid recovery by replenishing levels depleted during intense exercise, though scientific evidence for performance benefits in healthy athletes is mixed.
A crystalline, non-essential amino acid found in many proteins and important in cellular metabolism.
Glutamine is usually formal, technical, scientific in register.
Glutamine: in British English it is pronounced /ˈɡluːtəmiːn/, and in American English it is pronounced /ˈɡluːtəˌmiːn/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: GLU (like glucose for energy) + TA (taken) + MINE (from proteins in your body) -> an amino acid your body can 'mine' from proteins for energy and repair.
Conceptual Metaphor
BUILDING BLOCK (for proteins), FUEL (for certain immune and gut cells), CURRENCY (in nitrogen metabolism).
Practice
Quiz
In which field is the term 'glutamine' primarily used?