maser

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noun ma·ser \ˈmā-zər\

Definition of maser

  1. :  a device or object that emits coherent microwave radiation produced by the natural oscillations of atoms or molecules between energy levels

Recent Examples of maser from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'maser.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of maser

microwave amplification by stimulated emission of radiation


Medical Dictionary

maser

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noun ma·ser \ˈmā-zər\

Medical Definition of maser

  1. :  a device that utilizes the natural oscillations of atoms or molecules between energy levels for generating electromagnetic radiation in the microwave region of the spectrum


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