sweat is used for adjusting to hot temperatures by some animals & heat means temperature increases ->  when the body is hot , sweat is produced to cool the body  sweat is a kind of liquid & to sweat means to discharge sweat from the skin ->  to sweat means to discharge liquid from the skin  to sweat means to discharge liquid from the skin & water is a kind of liquid at room temperature ->  sweat is a discharge of water from the skin  when the body is hot , sweat is produced to cool the body & sweat is a discharge of water from the skin -> when the body is hot, water is discharged from the skin to cool the body