Isochronize \I*soch"ro*nize\, v. t. [imp. & p. p. -nized; p. pr. & vb. n. -nizing.]

[See Isochronous.]

To make, or tend to make (the motion of a moving body), uniform in rate of rotation, or in frequency of vibration.

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.

Source: Webster's Revised Unabridged Dictionary (1913)