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 • Sep. 5, 2023

The carboxyl group of one amino acid and the amino group of the incoming amino acid combine, releasing a molecule of water.

From Textbooks • Jun. 9, 2022

Pyruvate dehydrogenase removes carboxyl group from pyruvate producing carbon dioxide.

From Textbooks • Jun. 9, 2022

Fatty acids have a long chain of hydrocarbons to which an acidic carboxyl group is attached, hence the name “fatty acid.”

From Textbooks • Apr. 25, 2013

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

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" by Various