Carboxyl

Pronunciation: /ˈkɑɹˈbɑksiˈɛɫ/

Carboxyl (noun)

  1. A chemical group in organic molecules, written as –COOH, that can give acids their acidic properties.
  2. A functional group containing a carbon double-bonded to oxygen and bonded to an oxygen with a hydrogen or metal.

Examples

  • A carboxyl acid group can form hydrogen bonds with water.
  • The carboxyl acid group helps determine a molecule’s acidity.