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amino group

noun, Chemistry.
the univalent group, −NH 2 .
Also called amino radical. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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in chemistry, an -NH2 group, consisting of a nitrogen atom attached by single bonds to hydrogen atoms, alkyl groups, aryl groups, or a combination of them; also called amino radical


An organic compound that contains an amino group is called an amine.

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