| Noun | 1. | logic gate - a computer circuit with several inputs but only one output that can be activated by particular combinations of inputs AND circuit, AND gate - a circuit in a computer that fires only when all of its inputs fire computer circuit - a circuit that is part of a computer NAND circuit, NAND gate - a logic gate that produces an output that is the inverse of the output of an AND gate OR circuit, OR gate - a gate circuit in a computer that fires when any of its inputs fire XOR circuit, X-OR circuit, XOR gate - gate for exclusive OR; a circuit in a computer that fires only if only one of its inputs fire |