alpha-tocopherol: meaning, definition, pronunciation and examples
LowTechnical/Scientific/Medical
Quick answer
What does “alpha-tocopherol” mean?
The most biologically active form of vitamin E, a fat-soluble antioxidant nutrient.
Audio
Pronunciation
Definition
Meaning and Definition
The most biologically active form of vitamin E, a fat-soluble antioxidant nutrient.
A specific organic compound (C29H50O2) that is the primary and most potent form of vitamin E found in nature and used in supplements and food fortification. It functions primarily to protect cell membranes from oxidative damage.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. The chemical name is standardized. Spelling of the adjectival form in surrounding text may follow regional conventions (e.g., 'fortified' vs. 'fortified').
Connotations
Identical technical/scientific connotations in both varieties.
Frequency
Extremely low frequency in general discourse, used almost exclusively in technical fields in both regions.
Grammar
How to Use “alpha-tocopherol” in a Sentence
The supplement contains [QUANTITY] of alpha-tocopherol.Alpha-tocopherol is found in [FOOD SOURCE].Researchers measured serum alpha-tocopherol in the participants.Vocabulary
Collocations
Examples
Examples of “alpha-tocopherol” in a Sentence
verb
British English
- The oil is then fortified to alpha-tocopherolate it.
- The process aims to alpha-tocopherol-enrich the product.
American English
- The formula is alpha-tocopherolated for stability.
- They alpha-tocopherol-fortified the cereal.
adjective
British English
- The alpha-tocopherol component was analysed separately.
- An alpha-tocopherol-rich diet is recommended.
American English
- The alpha-tocopherol acetate form is common in supplements.
- Look for alpha-tocopherol-based antioxidants.
Usage
Meaning in Context
Business
Rare, used in marketing for high-end skincare or supplement lines (e.g., 'Enriched with natural alpha-tocopherol').
Academic
Common in biochemistry, nutrition, medical, and food science literature.
Everyday
Virtually never used. Replaced by the term 'vitamin E.'
Technical
The standard precise term in scientific research, clinical studies, pharmaceutical formulations, and nutritional labelling.
Vocabulary
Synonyms of “alpha-tocopherol”
Neutral
Weak
Vocabulary
Antonyms of “alpha-tocopherol”
Watch out
Common Mistakes When Using “alpha-tocopherol”
- Misspelling: 'alpha-tocopheral', 'alphatocopherol'.
- Incorrect pronunciation with stress on 'alpha' (/ˈælfə/) instead of on 'pherol' (/...ˈkɒfərɒl/).
- Using it as a countable noun (e.g., 'an alpha-tocopherol') – it is a mass noun.
FAQ
Frequently Asked Questions
Alpha-tocopherol is the most biologically active and primary form of vitamin E. In nutrition, 'vitamin E' often refers specifically to alpha-tocopherol, though technically vitamin E is a group of related compounds.
Foods rich in alpha-tocopherol include wheat germ oil, sunflower seeds and oil, almonds, hazelnuts, spinach, and broccoli.
D-alpha-tocopherol is the natural form. DL-alpha-tocopherol is a synthetic mixture; the 'L' form is less active. Supplements derived from natural sources contain the 'd' form.
It is a crucial fat-soluble antioxidant that protects cell membranes from damage caused by free radicals, supports immune function, and helps prevent the oxidation of LDL cholesterol.
The most biologically active form of vitamin E, a fat-soluble antioxidant nutrient.
Alpha-tocopherol is usually technical/scientific/medical in register.
Alpha-tocopherol: in British English it is pronounced /ˌalfətəˈkɒfərɒl/, and in American English it is pronounced /ˌælfətəˈkɑːfərɔːl/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: ALPHA means number one. Alpha-tocopherol is the NUMBER ONE (most active) form of TOCOPHEROL (vitamin E).
Conceptual Metaphor
THE GUARDIAN: Alpha-tocopherol is metaphorically understood as a protector or shield for cells against the 'attack' of free radicals (oxidation).
Practice
Quiz
In which context would the term 'alpha-tocopherol' be MOST appropriately used?