Entry 1 sense Webster, 1913 Subtrahend · Sub·tra·hend · IPA /ˈsʌbtɹəhɛnd/ 01 n. The sum or number to be subtracted, or taken from another (the minuend) to find the difference. 1. The sum or number to be subtracted, or taken from another (the minuend) to find the difference.(Math.)