Carboxamides

Part of speech: noun

Definitions

1. Organic compounds containing a carbonyl group bonded to a nitrogen atom, often found in pharmaceuticals and polymers; derivatives of carboxylic acids where the hydroxyl group is replaced by an amine or ammonia; substances characterized by the presence of an amide functional group attached to a carboxyl carbon
2. Molecules featuring a carbon double-bonded to oxygen and singly bonded to nitrogen, forming amide groups derived from carboxylic acids; chemical entities used in various biological and industrial applications; compounds structurally defined by a carbonyl linked to an amide nitrogen atom
3. Chemical species that have a carbonyl carbon connected to a nitrogen-containing group characteristic of amides; these are typically formed by replacing the hydroxyl in carboxylic acids with an amino group; important intermediates and components in organic synthesis and biochemistry

Etymology: "Carboxamides" is simply the plural of "carboxamide," so its history is the history of the compound word behind it. The base term is built from "carbox-", a combining form of "carboxyl," the name for the group of atoms (a carbon double-bonded to oxygen, with a hydroxyl attached) found in carboxylic acids, joined to "amide," the name for the class of compounds in which a nitrogen atom is bonded to a carbonyl carbon. "Carboxamide" therefore names a compound in which the hydroxyl of a carboxyl group has been replaced by an amine or ammonia group. The plural form, "carboxamides," simply applies the regular English rule of adding "-s" to count nouns, referring to more than one such compound. Because the name is a systematic chemical coinage built from older combining forms, the word reads as a description of its structure rather than as a term with a long everyday history.

Synonyms: amides, organic amides