[1] : The Collaborative International Dictionary of English v.0.48

menstruate \men"struate\, a.
   menstruous. obs.
   1913 webster

[2] : The Collaborative International Dictionary of English v.0.48

menstruate \men"struate\, v. i. imp.  p. p. menstruated; p.
   pr.  vb. n. menstruating.
   to discharge the menses; to have the catamenial flow.
   1913 webster
see also:
menstruated menstruating 

[3] : WordNet (r) 2.0

menstruate
     v : undergo menstruation; "she started menstruating at the age
         of 11" syn: flow
see also:
flow 

Menstruate >> M Words
Menstruate, definition of term: Menstruate
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