An electronic device that produces special effects on the sound produced by an electric guitar etc.(noun)
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Use "phaser" in a sentence
"This remark was immediately rendered in the Mercan language by his Translator, except for the word "phaser," for which there was no Mercan equivalent."
"The National Post has a fun article about William Shatner, called His phaser is set to fun."
"The phaser was a flashlight, with silouette disks of a Klingon ship and other such stuff."