is a specific kind of: building block, unit.

is a broader term that covers: acyl, acyl group | alcohol group, alcohol radical | aldehyde group, aldehyde radical | alkyl, alkyl group, alkyl radical | allyl, allyl group, allyl radical | amino, amino group | amyl | azido group, azido radical | azo group, azo radical | benzyl, benzyl group, benzyl radical | benzoyl group, benzoyl radical | arsenic group, cacodyl, cacodyl group, cacodyl radical | carbonyl group | carboxyl, carboxyl group | chromophore | cyanide group, cyanide radical, cyano group, cyano radical | glyceryl | hydrazo group, hydrazo radical | hydroxyl, hydroxyl group, hydroxyl radical | ketone group | methylene, methylene group, methylene radical | propyl, propyl group, propyl radical | butyl | nitro group | nitrite | uranyl, uranyl group, uranyl radical | vinyl, vinyl group, vinyl radical ... show more.

is a part of: molecule.

domain category: chemical science, chemistry.