The action or practice of extracting blood from a vein for therapeutic or diagnostic purposes (originally by surgical incision of the vein, later…

The action of performing phlebotomy; an instance of this. Also figurative.

The operation of cutting into or opening an artery (in early use esp. for the purpose of bloodletting); an instance of this. Also: an incision…

The opening of a vein in order to let blood. Obsolete.

The operation of cutting or opening a vein; phlebotomy; the practice of this as a medical remedy.