maser

noun
ma·​ser | \ ˈmā-zər How to pronounce maser (audio) \

Definition of maser

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

Examples of maser in a Sentence

Recent Examples on the Web It was made from a maser, which operates like a laser but releases microwave light. Nicole Yunger Halpern, Scientific American, 18 Apr. 2020 So Jefferts intentionally calibrates the maser at a frequency that's too high and one that's too low. Jay Bennett, Popular Mechanics, 24 Mar. 2017 The ball of cesium passes through the maser at the top of the chamber. Jay Bennett, Popular Mechanics, 24 Mar. 2017 The maser–the conceptual predecessor to the laser, which had been invented by Townes and others–had been around since the early 1950s, and the theoretical plans for the laser had also been around for a few years. Kat Eschner, Smithsonian, 7 July 2017 The maser–the conceptual predecessor to the laser, which had been invented by Townes and others–had been around since the early 1950s, and the theoretical plans for the laser had also been around for a few years. Kat Eschner, Smithsonian, 7 July 2017 The maser–the conceptual predecessor to the laser, which had been invented by Townes and others–had been around since the early 1950s, and the theoretical plans for the laser had also been around for a few years. Kat Eschner, Smithsonian, 7 July 2017 The maser–the conceptual predecessor to the laser, which had been invented by Townes and others–had been around since the early 1950s, and the theoretical plans for the laser had also been around for a few years. Kat Eschner, Smithsonian, 7 July 2017 The pumping scheme was originally designed for the laser’s predecessor, the maser, which amplified microwaves instead of light. Nicholas St. Fleur, New York Times, 11 Sep. 2017

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.

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First Known Use of maser

1955, in the meaning defined above

History and Etymology for maser

microwave amplification by stimulated emission of radiation

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Dictionary Entries Near maser

Masefield

maser

Maseru

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Cite this Entry

“Maser.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/maser. Accessed 16 Oct. 2021.

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More Definitions for maser

maser

noun
ma·​ser | \ ˈmā-zər How to pronounce maser (audio) \

Medical Definition of maser

: 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

More from Merriam-Webster on maser

Britannica.com: Encyclopedia article about maser

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