Source : Webster's Revised Unabridged Dictionary (1913)

Syntonize \Syn"to*nize\, v. t. [imp. & p. p. {-nized}; p. pr. &
   vb. n. {-nizing}.] [See {Syntony}.] (Physics)
   To adjust or devise so as to emit or respond to electric
   oscillations of a certain wave length; to tune; specif., to
   put (two or more instruments or systems of wireless
   telegraphy) in syntony with each other. --
   {Syn`to*ni*za"tion}, n.