maser

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++ma·ser /ˈmeɪzə $ -ər/ noun [countable] technical  TPEa piece of equipment that produces a very powerful electric force 〔能产生极强电能的〕微波激射器 → laser

Examples from the Corpus

maser• The main maser features may have originated from the slowly rotating disk or from the outflow gas near the galactic nucleus.• Other more recent tests involve direct comparison of the time-keeping of atomic clocks or of masers.• Our observations of the maser emission were made from January to June 1992 with the Nobeyana 45-m telescope.Origin maser (1900-2000) microwave amplification by stimulated emission of radiation

ma·ser nounChineseSyllable  

Corpus produces a equipment of a that piece

maser
ma‧ser /ˈmeɪzə $ -ər/ noun [countable] technicala piece of equipment that produces a very powerful electric force ⇨ laser