IPA: //ˈfeɪzər//
KK: /ˈfeɪzər/
A device used in music to create special sound effects, often associated with electric guitars.
The guitarist used a phaser to add a swirling effect to his music.
Phaser → The word is derived from the combination of 'phase' (from Greek 'phasis', meaning appearance or stage) and the suffix '-er' (meaning one who). A phaser is thus an entity that operates in a specific phase or stage, often used in science fiction to describe a type of energy weapon that can alter its phase of energy.
Think of 'phase' as a stage or appearance, and remember that a 'phaser' is something that operates in a specific stage of energy.