Definition of perspire

• v. i. - To excrete matter through the skin; esp., to excrete fluids through the pores of the skin; to sweat.
• v. i. - To be evacuated or excreted, or to exude, through the pores of the skin; as, a fluid perspires.
• v. t. - To emit or evacuate through the pores of the skin; to sweat; to excrete through pores.