extracorporeal-membrane oxygenation

ex·tra·cor·po·re·al-mem·brane ox·y·gen·a·tion

(ECMO) (eks'tră-kōr-pōr'ē-ăl-mem'brān oks'i-jĕn-ā'shŭn) A system to augment alveolar ventilation by gaseous diffusion across membranes outside the patient's body.