Definition of "menstrual" []

• Of or relating to menstruation. (adjective)
• Taking place on a monthly basis. (adjective)
• Lasting for one month. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "A female interrogator smeared what she described as menstrual blood -- it was fake -- on a prisoner."
• "Every day in my office, I see at least one girl who fits the definition of menstrual disturbance, said Dr. Smith, who defined that condition as six or fewer periods a year."
• "On one hand, if I become deeply disabled, I trust that my family will do right by me (lucky for me, I do have a family that I can trust here) and will make difficult decisions with my best care in mind (and damnit, they better stop my periods by hook or crook - they cause the most miserable moment of my existence, I have already medically stopped them by conscious choice, and I will come back and haunt from the grave anyone who decides that in order to be a real live comatose woman, I need no brain function but I do need to go back to suffering the week-long monthly evisceration I call my menstrual cycle)."