-nə(r) noun
( -s )
: one that tunes or is used for tuning: as
a. : a specialist in tuning musical instruments
piano tuner
b. : a workman who adjusts a mechanism for peak performance
power-loom tuner
typewriter tuner
a tuner of old cars
c.
(1) : tuning fork
(2) : pitch pipe
(3) : a device for tuning an organ flue pipe consisting of an adjustable flap or opening near its top by which the vibrating length of the air chamber may be changed
(4) : a device attached to the tailpiece of a bowed stringed musical instrument to facilitate the tuning of the upper strings
d.
(1) : an instrument (as a tuning capacitor) for tuning an electric circuit
(2) : the part of a receiving set consisting of the circuit used to adjust resonance