Source : Webster's Revised Unabridged Dictionary (1913)

Amenorrhoeal \A*men`or*rh[oe]"al\, a.
   Pertaining to amenorrh[oe]a.

Source : WordNet®

amenorrhoeal
     adj : related to the suppression of normal menstrual flow for any
           reason other than pregnancy [syn: {amenorrheic}, {amenorrhoeic},
            {amenorrheal}]