noun · 5 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
General-American:/ˈmeɪzɚ/
rhymes with -eɪzə(ɹ)
UK:Recorded audio is listed in the source snapshot.
CMU ARPABET:M EY1 Z ER0
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
a device for the coherent amplification or generation of electromagnetic radiation (especially of microwave frequency) by the use of excitation energy in resonant atomic or molecular systems
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
Any celestial object that generates microwaves using the same method
Definition source: English Wiktionary via Wiktextract
Topics: astronomy, natural-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
Obsolete spelling of mazer.
Definition source: English Wiktionary via Wiktextract
Usage: alt-of, countable, obsolete, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
Acronym of microwave amplification by the stimulated emission of radiation.
Definition source: English Wiktionary via Wiktextract
Usage: abbreviation, acronym, alt-of
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
noun
Meaning 5
an acronym for microwave amplification by stimulated emission of radiation; an amplifier that works on the same principle as a laser and emits coherent microwave radiation
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: amplifier
Narrower terms: gas maser
History
Etymology
From MASER, acronym of microwave amplification by stimulated emission of radiation.
See mazer.
Across languages
Translations
10 source translations are retained for this English entry.
Catalan:
màser
— beam of microwaves
Chinese Mandarin:
激微波
(jīwéibō)
— beam of microwaves