moment vs dipole moment

moment and dipole moment both are nouns.

Word	Noun	Adjective	Verb	Adverb
moment	Yes	No	No	No
dipole moment	Yes	No	No	No

As nouns, dipole moment is a hyponym of moment; that is, dipole moment is a word with a more specific, narrower meaning than moment:

moment: a turning force produced by an object acting at a distance (or a measure of that force)
dipole moment: the moment of a dipole

Other hyponyms of moment include moment of inertia, moment of a couple.

moment (noun)	dipole moment (noun)
having important effects or influence	the moment of a dipole
the n-th moment of a distribution is the expected value of the n-th power of the deviations from a fixed value
a turning force produced by an object acting at a distance (or a measure of that force)
a particular point in time
an indefinitely short time
at this time