moment of a couple

English Thesaurus

1. given two equal and opposite forces, the product of the force and the distance between them (noun.phenomenon)

hypernym	:	moment,
definition	:	a turning force produced by an object acting at a distance (or a measure of that force) (noun.phenomenon)

part meronym	:	couple,
definition	:	(physics) something joined by two equal and opposite forces that act along parallel lines (noun.object)