carboxyl group

American  

noun

1. the univalent radical COOH, present in and characteristic of organic acids.

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carboxyl group British  

/ kɑːˈbɒksaɪl, -sɪl /

noun

1. the monovalent group –COOH, consisting of a carbonyl group bound to a hydroxyl group: the functional group in organic acids

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Etymology

Origin of carboxyl group

First recorded in 1875–80

Example Sentences

We then sent these carbon atoms — from a very metabolically active part of the amino acid called the carboxyl group — through a machine called a mass spectrometer to read their isotope fingerprints.

From Salon

An unexpected enzymatic carboxyl group migration leads to an antibiotic precursor.

From Science Magazine

When treated with alkalies, they lose their carboxyl groups and become ætioporphyrin.

From Project Gutenberg

The group of carbon, oxygen, and hydrogen atoms which confers the property of acidity upon an organic compound is a half-molecule of oxalic acid—it is known as the carboxyl group.

From Project Gutenberg

The carboxyl group constitutes another convenient starting-point for the orientation of many types of organic compounds.

From Project Gutenberg