Meanings
nounamino acid (plural amino acids)
plural amino acids
- biochemistryAny organic compound containing both an amino and a carboxylic acid functional group.
Synonyms & antonyms
Narrower
nounorganic compounds containing an amino group and a carboxylic acid group
Similar
aminoalkanoic acid
Broader
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
- GermanAminosäure
- Englishamino acid
See amine and acid. Likely a calque of German Aminosäure, which is attested earlier.
More words from German
Full word history & related roots →Translations
Arabic حمض أميني
- حمض أميني (ḥimḍ amīni)any organic compound containing amino and carboxylic acid
Bulgarian аминокиселина, аминокиселина
- аминокиселина (aminokiselina)any organic compound containing amino and carboxylic acid
- аминокиселина (aminokiselina)any of the twenty α-amino acids
Catalan aminoàcid
- aminoàcidany organic compound containing amino and carboxylic acid
Chinese Cantonese 氨基酸
- 氨基酸 (on¹ gei¹ syun¹)any organic compound containing amino and carboxylic acid
Chinese Mandarin 氨基酸, 胺基酸
- 氨基酸 (ānjīsuān)any organic compound containing amino and carboxylic acid
- 胺基酸 (ānjīsuān, ànjīsuān)any organic compound containing amino and carboxylic acid
- 氨基酸 (ānjīsuān)any of the twenty α-amino acids
Czech aminokyselina, aminokyselina
- aminokyselinaany organic compound containing amino and carboxylic acid
- aminokyselinaany of the twenty α-amino acids
Danish aminosyre, aminosyre
- aminosyreany organic compound containing amino and carboxylic acid
- aminosyreany of the twenty α-amino acids
Dutch aminozuur, aminozuur
- aminozuurany organic compound containing amino and carboxylic acid
- aminozuurany of the twenty α-amino acids
Esperanto amina acido, amina acido
- amina acidoany organic compound containing amino and carboxylic acid
- amina acidoany of the twenty α-amino acids
Finnish aminohappo, aminohappo
- aminohappoany organic compound containing amino and carboxylic acid
- aminohappoany of the twenty α-amino acids
French acide aminé, aminoacide
- acide aminéany organic compound containing amino and carboxylic acid
- aminoacideany organic compound containing amino and carboxylic acid
- acide aminéany of the twenty α-amino acids
- aminoacideany of the twenty α-amino acids
German Aminosäure, Aminosäure
- Aminosäureany organic compound containing amino and carboxylic acid
- Aminosäureany of the twenty α-amino acids
Greek αμινοξύ, αμινοξύ
- αμινοξύ (aminoxý)any organic compound containing amino and carboxylic acid
- αμινοξύ (aminoxý)any of the twenty α-amino acids
Hungarian aminosav, aminosav
- aminosavany organic compound containing amino and carboxylic acid
- aminosavany of the twenty α-amino acids
Icelandic amínósýra
- amínósýraany organic compound containing amino and carboxylic acid
Indonesian asam amino
- asam aminoany organic compound containing amino and carboxylic acid
Irish aimínaigéad, aimínaigéad
- aimínaigéadany organic compound containing amino and carboxylic acid
- aimínaigéadany of the twenty α-amino acids
Italian amminoacido, aminoacido
- amminoacidoany organic compound containing amino and carboxylic acid
- aminoacidoany organic compound containing amino and carboxylic acid
- amminoacidoany of the twenty α-amino acids
- aminoacidoany of the twenty α-amino acids
Japanese アミノ酸, アミノ酸
- アミノ酸 (amino-san)any organic compound containing amino and carboxylic acid
- アミノ酸 (amino-san)any of the twenty α-amino acids
Korean 아미노산, 아미노산
- 아미노산 (aminosan)any organic compound containing amino and carboxylic acid
- 아미노산 (aminosan)any of the twenty α-amino acids
Latvian aminoskābe, aminoskābe
- aminoskābeany organic compound containing amino and carboxylic acid
- aminoskābeany of the twenty α-amino acids
Māori waikawa amino
- waikawa aminoany organic compound containing amino and carboxylic acid
Norwegian Bokmål aminosyre, aminosyre
- aminosyreany organic compound containing amino and carboxylic acid
- aminosyreany of the twenty α-amino acids
Polish aminokwas, aminokwas
- aminokwasany organic compound containing amino and carboxylic acid
- aminokwasany of the twenty α-amino acids
Portuguese aminoácido, aminoácido
- aminoácidoany organic compound containing amino and carboxylic acid
- aminoácidoany of the twenty α-amino acids
Romanian aminoacid
- aminoacidany organic compound containing amino and carboxylic acid
Russian аминокислота́
- аминокислота́ (aminokislotá)any organic compound containing amino and carboxylic acid
Slovak aminokyselina
- aminokyselinaany organic compound containing amino and carboxylic acid
Spanish aminoácido, aminoácido
- aminoácidoany organic compound containing amino and carboxylic acid
- aminoácidoany of the twenty α-amino acids
Swahili asidi ya amino
- asidi ya aminoany organic compound containing amino and carboxylic acid
Swedish aminosyra, aminosyra
- aminosyraany organic compound containing amino and carboxylic acid
- aminosyraany of the twenty α-amino acids
Turkish aminoasit, aminoasit
- aminoasitany organic compound containing amino and carboxylic acid
- aminoasitany of the twenty α-amino acids
Welsh asid amino, asid amino
- asid aminoany organic compound containing amino and carboxylic acid
- asid aminoany of the twenty α-amino acids
Cite this entry
APA
amino acid. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/amino%20acid
MLA
“amino acid.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/amino%20acid. Accessed November 5, 2026.
Chicago
WatkinsX Dictionary, s.v. “amino acid,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/amino%20acid.
Source: amino acid on Wiktionary, CC BY-SA 4.0.