Machine, heart-lung
pumping and oxygenating blood. Blood returning to the heart is diverted through a heart-lung machine before being returned to arterial circulation. Such machines may be used during open-heart surgery. Also known as pump-oxygenator or cardiopulmonary bypass machine.
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- Macrobiota
The living organisms of a region that are large enough to be seen with the naked eye.
- Macro- (prefix)
Prefix from the Greek “makros” meaning large or long. Examples of terms involving macro- include macrobiotic, macrocephaly, macrocytic, macroglossia, macrophage, macroscopic, and macrosomia. The opposite of macro- is micro-.
- Macrobiotic
Referring to the macrobiota, a region’s living organisms that are large enough to be seen with the naked eye.
- Macroangiopathy
A disease of the large blood vessels in which fat and blood clots build up and stick to the vessel walls, blocking the flow of blood. Types of macroangiopathy include coronary artery disease (macroangiopathy in the heart), cerebrovascular disease (macroangiopathy in the brain), and peripheral vascular disease (macroangiopathy that affects, for example, vessels in the […]
- Macrobiotic diet
A diet that incorporates Ayurvedic principles of food combining, is based mainly on brown rice and vegetables, and claims to lengthen life. The macrobiotic diet is strictly not recommended for pregnant women or children and may not provide sufficient protein and nutrients for others.