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. [Webster 1913 Suppl.]