| milliampere second |
ABBR: MAS. In radiography, the milliamperage of the exposure multiplied by the time of the exposure in seconds. This factor determines the density of the exposure of the radiograph.
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| millicoulomb |
ABBR: mC. A unit of electric current, one thousandth (10? 3) of a coulomb.
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| millicurie-hour |
ABBR: mCi-hr. A practical unit of dosage for radon: 1 mCi of radon applied for 1 hr. The biological effect depends on time, filtration, and distance.
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| millimicro- (mμ) |
Prefix formerly used to indicate one billionth (10-9). The term currently used is nano.
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| millimicrocurie |
A nanocurie, or 10? 9 curie.
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