aspartic acid: meaning, definition, pronunciation and examples
Low frequency (specialist)Scientific/technical, Academic
Quick answer
What does “aspartic acid” mean?
An acidic, non-essential amino acid that is a constituent of proteins and important in metabolism.
Audio
Pronunciation
Definition
Meaning and Definition
An acidic, non-essential amino acid that is a constituent of proteins and important in metabolism.
1. In biochemistry, one of the 20 proteinogenic amino acids, often denoted by Asp or D, known for its role in the citric acid cycle and urea cycle. 2. In the food industry, a component of the artificial sweetener aspartame.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or conceptual differences. Pronunciation may differ slightly (see IPA). Spelling is identical.
Connotations
Identical. Purely a scientific/technical term.
Frequency
Identical. Used only in relevant scientific, medical, nutritional, or industrial contexts.
Grammar
How to Use “aspartic acid” in a Sentence
[The] aspartic acid is metabolised[This] amino acid, aspartic acid, isAspartic acid, a common component,The aspartic acid residues in the proteinAspartic acid functions asVocabulary
Collocations
Examples
Examples of “aspartic acid” in a Sentence
verb
British English
- (No verb forms exist)
American English
- (No verb forms exist)
adverb
British English
- (No adverb forms exist)
American English
- (No adverb forms exist)
adjective
British English
- The aspartic acid residue was phosphorylated.
- An aspartic acid protease cleaved the peptide.
American English
- The aspartic acid residue was phosphorylated.
- An aspartic acid protease cleaved the peptide.
Usage
Meaning in Context
Business
Used in biotech, pharmaceutical, or food additive industry contexts regarding product composition or manufacturing.
Academic
Common in biochemistry, molecular biology, nutrition, and physiology research papers and textbooks.
Everyday
Virtually unused in casual conversation. May appear on food/nutritional labels or in health supplement discussions.
Technical
Precise use in laboratory protocols, structural biology (protein sequences), metabolic pathway diagrams, and chemical synthesis.
Vocabulary
Synonyms of “aspartic acid”
Vocabulary
Antonyms of “aspartic acid”
Watch out
Common Mistakes When Using “aspartic acid”
- Misspelling as 'aspartic acid' (missing 'c').
- Pronouncing the first syllable as 'as' /æs/ rather than the schwa /ə/.
- Using it as a countable noun incorrectly (e.g., 'two aspartic acids' is only correct when referring to distinct molecular instances, not the substance generally).
FAQ
Frequently Asked Questions
No. Aspartame is an artificial sweetener made from two amino acids: aspartic acid and phenylalanine. Aspartic acid is just one component.
It is used to build proteins, is involved in the citric acid cycle for energy production, and plays a role in the urea cycle for detoxifying ammonia.
No, it is a non-essential amino acid because the human body can synthesise it from other compounds, so it is not strictly required in the diet.
It is derived from asparagus, from which the amino acid was first isolated in 1806 (as asparagine, its amide, with aspartic acid being its acidic form).
An acidic, non-essential amino acid that is a constituent of proteins and important in metabolism.
Aspartic acid is usually scientific/technical, academic in register.
Aspartic acid: in British English it is pronounced /əˌspɑː.tɪk ˈæs.ɪd/, and in American English it is pronounced /əˌspɑːr.t̬ɪk ˈæs.ɪd/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “(None)”
Learning
Memory Aids
Mnemonic
Think: ASPARagus contains ASPARtic acid (historically isolated from asparagus).
Conceptual Metaphor
A BUILDING BLOCK (for proteins/metabolism), A KEY (that fits into enzymatic locks in metabolic pathways).
Practice
Quiz
In which field is the term 'aspartic acid' LEAST likely to be used?