Entry 2 senses · 2 variants Webster, 1913 Diaphoretic · Di·a·pho·ret·ic · IPA /daɪəfəˈɹɛtɪk/ a. n. 01 a. Having the power to increase perspiration. 1. Having the power to increase perspiration. 02 n. A medicine or agent which promotes perspiration. 1. A medicine or agent which promotes perspiration.(Med.)