Definition of carboxyl in English:

carboxyl

(also carboxy)

noun kɑːˈbɒksɪlkɑːˈbɒksʌɪlkɑrˈbɑksəl

Chemistry

as modifier Of or denoting the acid radical —COOH, present in most organic acids.
〔化〕羧基
the carboxyl group
羧基。
Example sentencesExamples
- This is caused by a dehydration reaction between the hydroxyl group from the glycerol and the carboxyl groups of the fatty acids.
- The carboxyl group of lysergic acid has been reduced to a methyl group.
- It is a weak organic acid that contains a carboxyl group.
- The ‘head’ of the molecule contains a phosphate group, glycerol, and the carboxyl groups from two long-chain fatty acids.
- Natural proteins are made up of alpha-amino acids, which have a carboxyl group and an amino group separated by one carbon atom.

Origin

Mid 19th century: from carbo- + ox- 'oxygen' + -yl.

Definition of carboxyl in US English:

carboxyl

nounkɑrˈbɑksəlkärˈbäksəl

Chemistry

as modifier Of or denoting the acid radical —COOH, present in most organic acids.
〔化〕羧基
the carboxyl group
羧基。
Example sentencesExamples
- The ‘head’ of the molecule contains a phosphate group, glycerol, and the carboxyl groups from two long-chain fatty acids.
- It is a weak organic acid that contains a carboxyl group.
- Natural proteins are made up of alpha-amino acids, which have a carboxyl group and an amino group separated by one carbon atom.
- This is caused by a dehydration reaction between the hydroxyl group from the glycerol and the carboxyl groups of the fatty acids.
- The carboxyl group of lysergic acid has been reduced to a methyl group.

Origin

Mid 19th century: from carbo- + ox- ‘oxygen’ + -yl.

单词	carboxyl
释义	Definition of carboxyl in English: carboxyl (also carboxy) noun kɑːˈbɒksɪlkɑːˈbɒksʌɪlkɑrˈbɑksəl Chemistry as modifier Of or denoting the acid radical —COOH, present in most organic acids. 〔化〕羧基 the carboxyl group 羧基。 Example sentencesExamples This is caused by a dehydration reaction between the hydroxyl group from the glycerol and the carboxyl groups of the fatty acids. The carboxyl group of lysergic acid has been reduced to a methyl group. It is a weak organic acid that contains a carboxyl group. The ‘head’ of the molecule contains a phosphate group, glycerol, and the carboxyl groups from two long-chain fatty acids. Natural proteins are made up of alpha-amino acids, which have a carboxyl group and an amino group separated by one carbon atom. Origin Mid 19th century: from carbo- + ox- 'oxygen' + -yl. Definition of carboxyl in US English: carboxyl nounkɑrˈbɑksəlkärˈbäksəl Chemistry as modifier Of or denoting the acid radical —COOH, present in most organic acids. 〔化〕羧基 the carboxyl group 羧基。 Example sentencesExamples The ‘head’ of the molecule contains a phosphate group, glycerol, and the carboxyl groups from two long-chain fatty acids. It is a weak organic acid that contains a carboxyl group. Natural proteins are made up of alpha-amino acids, which have a carboxyl group and an amino group separated by one carbon atom. This is caused by a dehydration reaction between the hydroxyl group from the glycerol and the carboxyl groups of the fatty acids. The carboxyl group of lysergic acid has been reduced to a methyl group. Origin Mid 19th century: from carbo- + ox- ‘oxygen’ + -yl.
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