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.

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1650.  Charleton, trans. Van Helmont’s Paradoxes, 37. The blood once extravenated, or effluxed out of its proper conservatory, the veins, looseth its interest of vitality.

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1668.  Culpepper & Cole, Barthol. Anat., 302/2. Extravenated Blood, or Blood out of its natural place.

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