carboxyl

American  

[kahr-bok-sil] / kɑrˈbɒk sɪl /

adjective

1. containing the carboxyl group.

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carboxyl Scientific  

/ kär-bŏk′səl /

1. The radical COOH, characteristic of all carboxylic acids.

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Other Word Forms

• carboxylic adjective

Etymology

Origin of carboxyl

First recorded in 1865–70; carb- + ox(ygen) + -yl

Compare meaning

How does carboxyl compare to similar and commonly confused words? Explore the most common comparisons:

• carbonyl vs. carboxyl

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

Pyruvate dehydrogenase removes a carboxyl group from pyruvate producing carbon dioxide.

From Textbooks • Jun. 9, 2022

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

For glycine, the acid strength of the carboxyl group is about the same as that of acetic acid, CH3CO2H, and the base strength of the amino group is slightly greater than that of ammonia, NH3.

From Textbooks • Feb. 14, 2019

Hence the positions occupied by the nitro groups in the two different nitrobrombenzoic acids must be symmetrical with respect to the carboxyl group.

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