Main Entry: group

Pronunciation: \ˈgrüp\

Function: noun

Usage: often attrib

1 : a number of individuals assembled together or having some unifying relationship
2 a : an assemblage of related organisms—often used to avoid taxonomic connotations when the kind or degree of relationship is not clearly defined b (1) : an assemblage of atoms forming part of a molecule ; especially : functional group (2) : an assemblage of elements forming one of the vertical columns of the periodic table