menstruate v 1: undergo menstruation; "She started menstruating at the age of 11" [syn: {menstruate}, {flow}]
Menstruate \Men"stru*ate\, a. Menstruous. [Obs.] [1913 Webster]
Menstruate \Men"stru*ate\, v. i. [imp. & p. p. {Menstruated}; p. pr. & vb. n. {Menstruating}.] To discharge the menses; to have the catamenial flow. [1913 Webster]