The Collaborative International Dictionary
Oxidator \Ox"i*da`tor\, n.
An oxidizer. [Obs.]
A contrivance for causing a current of air to impinge on the flame of the Argand lamp; -- called also oxygenator.
Wiktionary
n. any device that releases oxygen (or air) into water, especially one in an aquarium
Wikipedia
An oxygenator is a medical device that is capable of exchanging oxygen and carbon dioxide in the blood of human patient during surgical procedures that may necessitate the interruption or cessation of blood flow in the body, a critical organ or great blood vessel. These organs can be the heart, lungs or liver, while the great vessels can be the aorta, pulmonary artery, pulmonary veins or vena cava. An oxygenator is typically utilized by a perfusionist in cardiac surgery in conjunction with the heart-lung machine. However, oxygenators can also be utilized in extracorporeal membrane oxygenation in neonatal intensive care units by nurses.
For most cardiac operations such as coronary artery bypass grafting, the cardiopulmonary bypass is performed using a heart-lung machine (or cardiopulmonary bypass machine). The heart-lung machine serves to replace the work of the heart during the open bypass surgery. The machine replaces both the heart's pumping action and the lungs' gas exchange function. Since the heart is stopped during the operation, this permits the surgeon to operate on a bloodless, stationary heart.
One component of the heart-lung machine is the oxygenator. The oxygenator component serves as the lung, and is designed to expose the blood to oxygen and remove carbon dioxide. It is disposable and contains about 2–4 m² of a membrane permeable to gas but impermeable to blood, in the form of hollow fibers. Blood flows on the outside of the hollow fibers, while oxygen flows in the opposite direction on the inside of the fibers. As the blood passes through the oxygenator, the blood comes into intimate contact with the fine surfaces of the device itself. Gas containing oxygen and medical air is delivered to the interface between the blood and the device, permitting the blood cells to absorb oxygen molecules directly.
Usage examples of "oxygenator".
They were of stiffened metallic fabric, with spherical glassite helmets whose oxygenators started automatically when they were closed.
Then the heart masseur, the oxygenator, the artificial kidney would fight against vagal inhibition and maintain life in his body until he had painfully accepted the frustration of his planned escape from the world.
Of course, the plants are oxygenators but the system takes advantage of that.
They were attached to large metal oxygenators which piped in nourishment and removed wastes.