Webster's Revised Unabridged Dictionary · 1913

Tuning

Tuning (tūn"ing) , adjective and noun

a. & n. from Tune, v.
Collocations (1)
Tuning fork (Music) , a steel instrument consisting of two prongs and a handle, which, being struck, gives a certain fixed tone. It is used for tuning instruments, or for ascertaining the pitch of tunes.