XOR circuit vs logic gate

XOR circuit and logic gate both are nouns.

Word	Noun	Adjective	Verb	Adverb
XOR circuit	Yes	No	No	No
logic gate	Yes	No	No	No

As nouns, logic gate is a hypernym of XOR circuit; that is, logic gate is a word with a broader meaning than XOR circuit:

XOR circuit: gate for exclusive OR; a circuit in a computer that fires only if only one of its inputs fire
logic gate: a computer circuit with several inputs but only one output that can be activated by particular combinations of inputs

Other hypernyms of XOR circuit include gate.

XOR circuit (noun)	logic gate (noun)
gate for exclusive OR; a circuit in a computer that fires only if only one of its inputs fire	a computer circuit with several inputs but only one output that can be activated by particular combinations of inputs