half adder From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsnounA specific logical circuit that performs an addition operation on two bits. Related wordsSynonymsincrementeradding machinecarrycarry-inarithmetic logic unitbarrel shifterwallace treedecrementeradd-onaccumulatorlogic gatesense amplifieracceptorgate arrayanalog computerhybrid References Wiktionary — half adder Wikipedia — half adder