glutathione: meaning, definition, pronunciation and examples
Low Frequency (Technical/Scientific)Technical, Scientific, Biomedical, Health & Wellness
Quick answer
What does “glutathione” mean?
A tripeptide antioxidant compound that occurs naturally in the cells of plants, animals, and some bacteria, playing a crucial role in protecting cells from damage by free radicals and toxins.
Audio
Pronunciation
Definition
Meaning and Definition
A tripeptide antioxidant compound that occurs naturally in the cells of plants, animals, and some bacteria, playing a crucial role in protecting cells from damage by free radicals and toxins.
A biologically important molecule involved in cellular metabolism, redox reactions, detoxification processes, and immune system function. Its depletion or malfunction is associated with various diseases and aging.
Dialectal Variation
British vs American Usage
Differences
No significant spelling or pronunciation differences. Usage contexts are identical, though brand names of supplements may vary regionally.
Connotations
Identical core scientific connotations. In popular culture, it may be slightly more strongly associated with skin-lightening treatments in some Asian and Asian-American contexts, but this is not a primary denotation.
Frequency
Equally low-frequency in both varieties, confined to scientific, medical, and wellness discourse.
Grammar
How to Use “glutathione” in a Sentence
The [noun] contains/requires glutathione.[Subject] depletes/boosts/regulates glutathione levels.Glutathione acts as/is a/an [noun phrase].Vocabulary
Collocations
Usage
Meaning in Context
Business
Used in the pharmaceutical, nutraceutical, and cosmetic industries (e.g., 'The company invests in glutathione-based skincare research').
Academic
Standard term in biochemistry, cell biology, pharmacology, and nutrition journals (e.g., 'The study measured glutathione depletion in hepatocytes').
Everyday
Rare. May appear in health food stores, wellness blogs, or supplement discussions (e.g., 'My doctor suggested I look into glutathione for antioxidant support').
Technical
Precise term in laboratory protocols, clinical assays, and metabolic pathway descriptions (e.g., 'The assay quantifies total glutathione concentration').
Vocabulary
Synonyms of “glutathione”
Strong
Neutral
Weak
Vocabulary
Antonyms of “glutathione”
Watch out
Common Mistakes When Using “glutathione”
- Misspelling as 'glutathion' (dropping the 'e').
- Using it as a plural (e.g., 'glutathiones'). It is typically a non-count noun.
- Over-generalising its function to 'cure-all' in non-scientific contexts.
FAQ
Frequently Asked Questions
Its primary functions are acting as a major antioxidant to neutralise free radicals, aiding in detoxification by binding to toxins in the liver, and supporting immune function and DNA synthesis.
Yes, but direct dietary glutathione is poorly absorbed. The body primarily synthesises it from its constituent amino acids (cysteine, glutamate, glycine), which are found in protein-rich foods, broccoli, garlic, and asparagus.
It refers to the active, antioxidant form of the molecule. When glutathione neutralises a free radical, it becomes 'oxidised' (GSSG). Enzymes in the body then recycle GSSG back to the active reduced form (GSH).
Its levels are a key marker of oxidative stress and cellular health. Depletion is implicated in aging, neurodegenerative diseases (e.g., Parkinson's), liver disease, and cancer, making it a target for therapeutic research.
A tripeptide antioxidant compound that occurs naturally in the cells of plants, animals, and some bacteria, playing a crucial role in protecting cells from damage by free radicals and toxins.
Glutathione is usually technical, scientific, biomedical, health & wellness in register.
Glutathione: in British English it is pronounced /ˌɡluːtəˈθaɪəʊn/, and in American English it is pronounced /ˌɡluːtəˈθaɪoʊn/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “The body's master antioxidant (wellness metaphor)”
Learning
Memory Aids
Mnemonic
Think: GLUtamate + cysTEINE + glycINE = GLUTATHIONE. It's the 'GLUe' that helps the body's defenses stick together against toxins.
Conceptual Metaphor
THE CELL'S DETOXIFICATION AGENT / THE BODY'S INTERNAL ANTIOXIDANT SHIELD.
Practice
Quiz
In which of these fields is the term 'glutathione' LEAST likely to be commonly used?