carboxyl

/kɑrˈbɑksɪl/
adjective
  1. Relating to a chemical group (COOH) found in organic acids, such as vinegar and citric acid.
    • The chemist studied the carboxyl structure of the molecule.
    • Many amino acids contain a carboxyl group.
    • The carboxyl group gives acetic acid its sour taste.
Synonyms
What does "carboxyl" mean? | whatsthatwordmean | whatsthatwordmean