Category: M
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Metrizamide
A water soluble radiographic contrast medium used to outline structures in the spinal canal during myelography. It occasionally may cause the patient to have seizures after the procedure.
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Metriocephalic
A skull with a vertical index of 72 to 76.9.
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Metric system
A system of weights and measures based on the meter (about 39.37 in) as the unit of distance, the kilogram as the unit of mass, and the cubic meter as the unit of volume.
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Metria
Inflammation of the uterus during the puerperium.
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Metreurynter
An inflatable bag that is inserted in the os uteri and distended to dilate the cervix.
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Metoxenous
Denoting a parasite living on different hosts at different stages of development.
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Metoprolol tartrate
A beta-1 selective beta blocker that lowers blood pressure, slows the heart rate, and reduces the heart’s contractility but is less likely than nonselective beta blockers to cause wheezing. Trade names include Toprol and Toprol XL.
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Metopism
Persistence of the metopic suture in an adult.
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Metopion
Craniometric point in the forehead midway between frontal eminences.
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Metopagus
Conjoined twins united at the forehead.