‖prop. n. [ L., impatient. ] (Bot.) A genus of plants, several species of which have very beautiful flowers; -- so called because the elastic capsules burst when touched, and scatter the seeds with considerable force. Called also touch-me-not, jewelweed, and snapweed. Impatiens Balsamina (sometimes called lady's slipper) is the common garden balsam. [ 1913 Webster ]