mAs(redirected from MÄS)
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a unit of radiographic exposure equal to the product of the milliamperage and the exposure time in seconds. Abbreviated mAs.
abbreviation for mobile arm support.
abbreviation for milliampere-second.
MAS (MaS, mas, milliampere-second),
n the product of the milliamperes and the exposure time in seconds (e.g., 10 ma sec = 5 MAS).