Definition of carboxyl
: a monovalent functional group or radical −COOH typical of organic acids —called also carboxyl group
carboxylicplay \ˌkär-(ˌ)bäk-ˈsi-lik\ adjective
Origin and Etymology of carboxyl
International Scientific Vocabulary
First Known Use: 1869See Words from the same year
Seen and Heard
What made you want to look up carboxyl? Please tell us where you read or heard it (including the quote, if possible).