emf vs electromotive force

emf and electromotive force both are nouns.

Word	Noun	Adjective	Verb	Adverb
emf	Yes	No	No	No
electromotive force	Yes	No	No	No

As nouns, emf and electromotive force are synonyms defined as:

emf and electromotive force: the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts

Other synonyms of emf include voltage.

emf (noun)	electromotive force (noun)
the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts	the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts