subtractor vs electric circuit

subtractor and electric circuit both are nouns.

Word	Noun	Adjective	Verb	Adverb
subtractor	Yes	No	No	No
electric circuit	Yes	No	No	No

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

subtractor: An electronic logic circuit for calculating the difference between two binary numbers.
electric circuit: an electrical device that provides a path for electrical current to flow

Other hypernyms of subtractor include circuit, electrical circuit.

subtractor (noun)	electric circuit (noun)
An electronic logic circuit for calculating the difference between two binary numbers.	an electrical device that provides a path for electrical current to flow