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• amino
  amino

  adjective

  containing the amino group.
• amino-
  amino-

  a combining form used in the names of chemical compounds in which the amino group is present.

amino

¹ American  

[uh-mee-noh, am-uh-noh] / əˈmi noʊ, ˈæm əˌnoʊ /

adjective

Chemistry.

1. containing the amino group.

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amino- ² American  

1. a combining form used in the names of chemical compounds in which the amino group is present.

   aminobenzene.

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amino ¹ British  

/ -ˈmiː-, əˈmaɪnəʊ /

noun

1. (modifier) of, consisting of, or containing the group of atoms -NH 2

   amino group or radical

   amino acid

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amino- ² British  

combining form

1. indicating the presence of an amino group

   aminobenzoic acid

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amino Scientific  

/ ə-mē′nō,ăm′ə-nō′ /

1. Relating to an amine or other chemical compound that contains the group NH ₂.

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Etymology

Origin of amino¹

First recorded in 1900–05; independent use of amino-

Origin of amino-²

amine + -o-

Example Sentences

"Eggs contain all nine essential amino acids that the body needs," she said, noting that pulses - while also nutritious - contain more fibre and a higher share of non-essential amino acids.

From BBC • Jul. 4, 2026

To investigate whether these amino acids affect longevity, the researchers analyzed health and genetic information from more than 270,000 participants enrolled in the UK Biobank, one of the world's largest long term health databases.

From Science Daily • Jun. 15, 2026

Instead, the study focused on naturally occurring blood levels of the amino acid and how those levels were associated with longevity.

From Science Daily • Jun. 15, 2026

“Dairy has pretty unique protein value compared to plant-based protein, just because of the amino acids,” he said.

From MarketWatch • Jun. 11, 2026

But by 1965, all of these studies—and especially Nirenberg’s—had successfully mapped every DNA triplet to a corresponding amino acid.

From "The Gene" by Siddhartha Mukherjee