para-aminobenzoic acid: meaning, definition, pronunciation and examples
TechnicalSpecialist, scientific, medical, biochemical
Quick answer
What does “para-aminobenzoic acid” mean?
An organic compound and a component of folic acid, also known as a B vitamin, used in sunscreen and bacterial metabolism.
Audio
Pronunciation
Definition
Meaning and Definition
An organic compound and a component of folic acid, also known as a B vitamin, used in sunscreen and bacterial metabolism.
A white, crystalline substance that is a growth factor for some bacteria and is sometimes used as a supplement, though its vitamin status in humans is not firmly established.
Dialectal Variation
British vs American Usage
Differences
No significant differences in usage. Spelling remains consistent as a technical term.
Connotations
None beyond the scientific. In both varieties, it is a neutral, descriptive chemical name.
Frequency
Equally low-frequency and confined to technical contexts in both regions.
Grammar
How to Use “para-aminobenzoic acid” in a Sentence
[be] a source of ~[be] synthesised from ~[be] converted into ~[be] rich in ~Vocabulary
Collocations
Examples
Examples of “para-aminobenzoic acid” in a Sentence
verb
British English
- The bacteria can para-aminobenzoate the precursor molecule.
American English
- The enzyme para-aminobenzoates the substrate.
adjective
British English
- The para-aminobenzoic derivative was isolated.
American English
- They studied the para-aminobenzoic pathway.
Usage
Meaning in Context
Business
Rarely used, except in marketing for 'PABA-free' sunscreens or supplement labelling.
Academic
Common in biochemistry, microbiology, and nutrition papers discussing bacterial metabolism or vitamin synthesis.
Everyday
Virtually never used in casual conversation. Might be seen on sunscreen ingredient lists.
Technical
The primary context. Used precisely in chemical, pharmacological, and cosmetic formulations.
Vocabulary
Synonyms of “para-aminobenzoic acid”
Vocabulary
Antonyms of “para-aminobenzoic acid”
Watch out
Common Mistakes When Using “para-aminobenzoic acid”
- Misspelling as 'para-aminobenzoic' (missing the 'ic').
- Pronouncing 'para' as in 'parachute' instead of /ˈpær.ə/.
- Confusing it with benzoic acid or aminobenzoic acids in general.
FAQ
Frequently Asked Questions
It is often grouped with the B-complex vitamins (historically called vitamin Bx), but it is not considered an essential vitamin for humans. It is essential for some bacteria and other microorganisms.
PABA absorbs ultraviolet (UVB) radiation, protecting the skin from sunburn. However, it can cause allergic reactions and stain clothing, so 'PABA-free' formulas are now common.
In chemistry, 'para-' indicates that two substituents on a benzene ring are directly opposite each other (at the 1 and 4 positions). Here, it specifies the position of the amino group relative to the carboxylic acid group.
It is available as a dietary supplement, often marketed for skin and hair health, but robust scientific evidence for benefits in humans is lacking. High doses may cause side effects.
An organic compound and a component of folic acid, also known as a B vitamin, used in sunscreen and bacterial metabolism.
Para-aminobenzoic acid is usually specialist, scientific, medical, biochemical in register.
Para-aminobenzoic acid: in British English it is pronounced /ˌpær.ə əˌmiː.nəʊ.benˈzəʊ.ɪk ˈæs.ɪd/, and in American English it is pronounced /ˌpær.ə əˌmiː.noʊ.benˈzoʊ.ɪk ˈæs.ɪd/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None. It is a technical term with no idiomatic usage.”
Learning
Memory Aids
Mnemonic
Think: PARA-sol (for sun) + AMINO (building block) + BENZOIC (like benzene ring) ACID. A sun-related amino-acid compound.
Conceptual Metaphor
Often conceptualised as a BUILDING BLOCK or PRECURSOR in biochemical pathways.
Practice
Quiz
What is the primary, non-cosmetic role of para-aminobenzoic acid in nature?