carboxyl group

carboxyl group

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

Origin:
1875–80

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World English Dictionary
carboxyl group or carboxyl radical (kɑːˈbɒksaɪl, -sɪl, kɑːˈbɒksaɪl, -sɪl)
 
n
the monovalent group --COOH, consisting of a carbonyl group bound to a hydroxyl group: the functional group in organic acids
 
[C19 carboxyl, from carbo- + oxy-² + -yl]
 
carboxyl radical or carboxyl radical
 
n
 
[C19 carboxyl, from carbo- + oxy-² + -yl]

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