(of a musical instrument) able to be adjusted to the correct or uniform pitch

most of these old uprights aren't tunable

(of a receiver circuit such as a radio or television) able to be adjusted to the frequency of the required signal

the radio is tunable to only a selected band of frequencies

(of an engine or mechanical parts) able to be adjusted so that a vehicle runs smoothly and efficiently

this is a very tunable engine that can put out big power with a few mods

able to be adjusted or adapted

two tunable lasers are used to modulate the amplitude