1. carboxyl

adjective. relating to or containing the carboxyl group or carboxyl radical.


  • old

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2. carboxyl

noun. the univalent radical -COOH; present in and characteristic of organic acids.


  • carboxyl group
  • chemical group
  • radical


  • cauline

Sentences with carboxyl

1. Noun, singular or mass
In the linear form, both have a reactive group called a carboxyl that enables the transition between ring and chain structures.

2. Adjective
The carboxyl functional group is often referred to as an acid group because it is very acidic.