تعريف slide whistle في الإنجليزية الإنجليزية القاموس.
A wind instrument consisting of a fipple like a recorder's and a tube with a piston in it, the pitch being varied with a slide, commonly used as a sound effect to accompany pratfalls in slapstick
(Muzik) A slide whistle (variously known as a swanee whistle, piston flute or less commonly jazz flute) is a wind instrument consisting of a fipple like a recorder's and a tube with a piston in it. It thus has an air reed like some woodwinds, but varies the pitch with a slide. Because the air column is cylindrical and open at one end and closed at the other, it overblows the third harmonic