phlebotomy
Concise Oxford English Dictionary © 2008 Oxford University Press:
phlebotomy /flɪˈbɒtəmi/
▶noun (pl. phlebotomies) the surgical opening or puncture of a vein to withdraw blood or introduce a fluid.
– derivatives
phlebotomist noun,
phlebotomize (or phlebotomise) verb (archaic).
phlebotomist noun,
phlebotomize (or phlebotomise) verb (archaic).
– origin ME: via OFr. from late L. phlebotomia from Gk, from phleps, phleb- ‘vein’ + -tomia ‘cutting’.
'phlebotomy' also found in these Oxford entries:

