Source : Webster's Revised Unabridged Dictionary (1913)

Calender \Cal"en*der\, v. i. [imp. & p. p. {Calendered}; p. pr.
   & vb. n. {Calendering}.] [Cf. F. calandrer. See {Calender},
   n.]
   To press between rollers for the purpose of making smooth and
   glossy, or wavy, as woolen and silk stuffs, linens, paper,
   etc. --Ure.