Quiesce \Qui*esce"\, v. i. [imp. & p. p. {Quiesced}; p. pr. & vb. n. {Quiescing}.] [L. quiescere, akin to quies rest, quiet. See {Quiet}, a. & n.] To be silent, as a letter; to have no sound. --M. Stuart. [1913 Webster] Quiescence