galvanic cell vs electric cell

galvanic cell and electric cell both are nouns.

Word	Noun	Adjective	Verb	Adverb
galvanic cell	Yes	No	No	No
electric cell	Yes	No	No	No

As nouns, electric cell is a hypernym of galvanic cell; that is, electric cell is a word with a broader meaning than galvanic cell:

galvanic cell: an electric cell that generates an electromotive force by an irreversible conversion of chemical to electrical energy; cannot be recharged
electric cell: a device that delivers an electric current as the result of a chemical reaction

Other hypernyms of galvanic cell include cell.

galvanic cell (noun)	electric cell (noun)
an electric cell that generates an electromotive force by an irreversible conversion of chemical to electrical energy; cannot be recharged	a device that delivers an electric current as the result of a chemical reaction