beneficence UK /bəˈnɛf.ɪ.səns/US /bəˈnɛ.fə.sən(t)s/ noun3 •The practice of doing good, such as acts of philanthropy, kind deeds; or other acts which benefit someone else. •Good or charitable character or behavior. •A duty or obligation to act in the best interests of another, especially a patient or beneficiary. formsbeneficences