galvanism vs ECT

galvanism and ECT both are nouns.

Word	Noun	Adjective	Verb	Adverb
galvanism	Yes	No	No	No
ECT	Yes	No	No	No

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

galvanism: the therapeutic application of electricity to the body (as in the treatment of various forms of paralysis)
ECT: the administration of a strong electric current that passes through the brain to induce convulsions and coma

Other hyponyms of galvanism include electroconvulsive therapy, electroshock, electroshock therapy.

galvanism (noun)	ECT (noun)
the therapeutic application of electricity to the body (as in the treatment of various forms of paralysis)	the administration of a strong electric current that passes through the brain to induce convulsions and coma
electricity produced by chemical action