Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The univalent group, −COOH, the functional group characteristic of all organic acids.

from The Century Dictionary.

  • noun A hypothetical organic radical having the formula COOH.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Chem.) The complex radical, CO.OH, regarded as the essential and characteristic constituent which all oxygen acids of carbon (as formic, acetic, benzoic acids, etc.) have in common; -- called also oxatyl.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun organic chemistry A univalent functional group consisting of a carbonyl and a hydroxyl functional group (-CO.OH); characteristic of carboxylic acids.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective relating to or containing the carboxyl group or carboxyl radical
  • noun the univalent radical -COOH; present in and characteristic of organic acids

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[carb(o)– + ox(y)– + –yl.]

Examples

  • BTW, the system is not awfully wrong: the negative charge on the acidic carboxyl groups is to be expected.

    Archive 2008-01-01

  • A xenobiotic that has undergone a Phase I reaction is now a new intermediate metabolite that contains a reactive chemical group, e.g., hydroxyl (- OH), amino (- NH2), and carboxyl (- COOH).

    Biotransformation

  • BTW, the system is not awfully wrong: the negative charge on the acidic carboxyl groups is to be expected.

    Why chemistry-rich RSS feeds matter...

  • Many of the compounds in asphalt are polar since they contain alcohol, carboxyl, phenolic, amine, thiol, and other functional groups.

    Asphalt

  • Within the hydrophobic environment in the center of the green fluorescent protein, a reaction occurs between the carboxyl carbon of Ser65 and the amino nitrogen of Gly67 that results in the formation of an imidazolin-5-one heterocyclic nitrogen ring system (as illustrated in Figure 2).

    Archive 2005-10-01

  • Secondly, regarding the hyper-IgM syndrome type 2 that affects the carboxyl-terminus of AID and abolishes CSR - do these truncations affect protein stability or is that known?

    3 recent reports use evolution to study mechanisms of antibody diversification - The Panda's Thumb

  • Chemically, tannins are complex phenolic polymers containing aliphatic and phenolic hydroxyl groups and in some cases, carboxyl groups.

    Chapter 4

  • An organic chemical compound that contains both an amine group and a carboxyl group; the unit of structure of proteins.

    Alcohol and The Addictive Brain

  • The enzyme that facilitates the removal of carboxyl from an amino acid.

    Alcohol and The Addictive Brain

  • An organic chemical compound that contains both an amine group and a carboxyl group; the unit of structure of proteins.

    Alcohol and The Addictive Brain

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