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RMS Astronomy

(Radio Millimeter Submillimeter Wavelength Astronomy)
(collective term for Radio, Millimeter, and Submillimeter)

RMS Astronomy (for Radio Millimeter Submillimeter Wavelength Astronomy) is a collective term for astronomy at Frequency's lower than the Far Infrared, i.e., Radio down to its shortest Microwave Wavelengths, thus encompassing Radio Astronomy and Submillimeter Astronomy. The abbreviation has been used in planning efforts.

Note that RMS is also a common scientific abbreviation for Root Mean Square, i.e., the square root of the average/mean of a set of numbers, a term also commonly used in radio astronomy.