Obs. rare. [f. as prec. + -ATE3.] trans. To let (blood) out of the veins; to extravasate. Hence Extravenated ppl. a. Extravenation, the action of letting blood out of the veins; an instance of this.
1650. Charleton, trans. Van Helmonts Paradoxes, 37. The blood once extravenated, or effluxed out of its proper conservatory, the veins, looseth its interest of vitality.
1668. Culpepper & Cole, Barthol. Anat., 302/2. Extravenated Blood, or Blood out of its natural place.