To pour out of one vessel into another; transfer by pouring.In medicine, to transfer (blood) from the veins or arteries of one person to those of another, or from an animal to a person; also, to inject into a blood-vessel (other liquids, such as milk or saline solutions), with the view of replacing the bulk of fluid lost by hemorrhage or drained away in the discharges of cholera, etc.To cause to pass from one to another; cause to be instilled or imbibed.