carboxylic acid: meaning, definition, pronunciation and examples
C1/C2Technical/Academic
Quick answer
What does “carboxylic acid” mean?
Any of a class of organic compounds containing a carboxyl group (–COOH) as the functional group.
Audio
Pronunciation
Definition
Meaning and Definition
Any of a class of organic compounds containing a carboxyl group (–COOH) as the functional group.
In broader context, an acidic compound characteristic of many biological and industrial chemicals, known for donating a proton (H⁺) due to the presence of the carboxyl group.
Dialectal Variation
British vs American Usage
Differences
No significant differences in usage or definition.
Connotations
Identical connotations in scientific contexts.
Frequency
Used with identical frequency in relevant scientific fields in both regions.
Grammar
How to Use “carboxylic acid” in a Sentence
[carboxylic acid] + of + [type] (e.g., carboxylic acid of long-chain hydrocarbons)[carboxylic acid] + with + [property] (e.g., carboxylic acid with a pungent odour)Vocabulary
Collocations
Examples
Examples of “carboxylic acid” in a Sentence
adjective
British English
- The carboxylic acid group is highly polar.
- We identified a carboxylic acid derivative.
American English
- The carboxylic acid functional group is key.
- It's a carboxylic acid compound.
Usage
Meaning in Context
Business
Rare, except in industries like pharmaceuticals, food additives, or chemical manufacturing.
Academic
Core term in chemistry, biochemistry, and related life sciences.
Everyday
Virtually never used in casual conversation.
Technical
Standard, precise term for a fundamental class of compounds.
Watch out
Common Mistakes When Using “carboxylic acid”
- Misspelling as 'carboxyilic' or 'carboxilic'.
- Confusing with 'carbonyl' (C=O) group.
- Using 'carboxylic' as a standalone noun (it is an adjective; requires 'acid').
FAQ
Frequently Asked Questions
Acetic acid (CH₃COOH), the main component of vinegar, is a common example.
No, 'carboxylic' is an adjective. It must modify a noun like 'acid', 'group', or 'compound'.
The hydrogen atom in the –COOH (carboxyl) group can be released as a proton (H⁺), which defines its acidity.
Yes, fatty acids are long-chain aliphatic carboxylic acids.
Carboxylic acid is usually technical/academic in register.
Carboxylic acid: in British English it is pronounced /ˌkɑːbɒkˈsɪlɪk ˈæsɪd/, and in American English it is pronounced /ˌkɑːrbɑːkˈsɪlɪk ˈæsɪd/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think 'CARBOXYL' as 'CARBOn' + 'OXYgen' (in the –COOH group) + 'ic ACID'.
Conceptual Metaphor
A carboxylic acid is often conceptualized as a 'PROTON DONOR' or a 'MOLECULE WITH AN ACIDIC HEAD'.
Practice
Quiz
Which of the following is NOT a carboxylic acid?