Source : Webster's Revised Unabridged Dictionary (1913)

Calculous \Cal"cu*lous\, a. [L. calculosus.]
   1. Of the nature of a calculus; like stone; gritty; as, a
      calculous concretion. --Sir T. Browne.

   2. Caused, or characterized, by the presence of a calculus or
      calculi; a, a calculous disorder; affected with gravel or
      stone; as, a calculous person.

Source : WordNet®

calculous
     adj : relating to or caused by or having a calculus or calculi