valide trombone (English, noun)
expansion: valide trombone (plural valide trombones)
Senses:
glosses: A hybrid trombone having both a set of three piston valves and a slide to vary the pitch, the slide being positioned within the valve section and shorter than a standard trombone slide, only covering four positions instead of the usual seven, and not locking.
Forms:
form: valide trombones
tags: plural