electroshock vs shock treatment

electroshock and shock treatment both are nouns.

Word	Noun	Adjective	Verb	Adverb
electroshock	Yes	No	No	No
shock treatment	Yes	No	No	No

As nouns, shock treatment is a hypernym of electroshock; that is, shock treatment is a word with a broader meaning than electroshock:

electroshock: the administration of a strong electric current that passes through the brain to induce convulsions and coma
shock treatment: treatment of certain psychotic states by the administration of shocks that are followed by convulsions

Other hypernyms of electroshock include electric healing, electrical healing, electrotherapy, galvanism, shock therapy.

electroshock (noun)	shock treatment (noun)
the administration of a strong electric current that passes through the brain to induce convulsions and coma	treatment of certain psychotic states by the administration of shocks that are followed by convulsions