menstrual cycle

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Related to menstrual cycle: Pregnancy symptoms

men·stru·al cycle

The series of bodily changes in women and other female primates in which the lining of the uterus thickens to allow for implantation of a fertilized egg. The cycle takes about a month to complete, with ovulation usually occurring around the midway point. If the egg produced is not fertilized, the lining of the uterus breaks down and is discharged during menstruation.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.menstrual cycle - a recurring cycle (beginning at menarche and ending at menopause) in which the endometrial lining of the uterus prepares for pregnancy; if pregnancy does not occur the lining is shed at menstruation; "the average menstrual cycle is 28 days"
oscillation, cycle - a single complete execution of a periodically repeated phenomenon; "a year constitutes a cycle of the seasons"
fertile period, fertile phase - the time in the menstrual cycle when fertilization is most likely to be possible (7 days before to 7 days after ovulation)
menstrual phase - the phase of the menstrual cycle during which the lining of the uterus is shed (the first day of menstrual flow is considered day 1 of the menstrual cycle)
luteal phase, secretory phase - the second half of the menstrual cycle after ovulation; the corpus luteum secretes progesterone which prepares the endometrium for the implantation of an embryo; if fertilization does not occur then menstrual flow begins
safe period - that time during a woman's menstrual cycle during which conception is least likely to occur (usually immediately before of after menstruation)
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Our finding that there was no significant correlation between TOAEs and DPOAEs and the phases of the menstrual cycle suggest that it is unnecessary to take the phase of the menstrual cycle into account when interpreting OAE test results.
Influence of Menstrual Cycle on Cardiac Autonomic Control
If one or more of the symptoms you experience before or during your period causes a problem, you may have a menstrual cycle "disorder." These include:
The timing of surgical intervention for breast cancer in relation to the menstrual cycle received much attention in the late 1980s and 1990s.
Dr Dharani Hapangama, who led the new research, said: "Women who have endometriosis express this enzyme in both the early and late stages of the menstrual cycle which means the cells will continue to divide and lose their focus in supporting the establishment of a pregnancy.
Researchers have now shown that ovaries can be stimulated during the final phase of the menstrual cycle, widening the window of opportunity for egg collection.
"It is the position of the Society that menstruation is not a disease," says Christine Hitchcock, board member of the SMCR and Research Associate at the Centre for Menstrual Cycle and Ovulation Research, University of British Columbia; "Further research on the potential health risks and long-term safety of cycle-stopping contraception is still needed."
It's analogous to a woman's menstrual cycle. On the same day, regardless of what part of the cycle the animals were experiencing, the scientists injected one of each animal's hind paws with a chemical that causes painful inflammation.
Haley Veterans' Hospital in Tampa, Fla., reported a sharp spike in migraines on day 1 of the menstrual cycle in a prospective study of 107 women with a history of menstrual-related migraine.
They found exposure to air pollution in during high school was correlated with menstrual cycle irregularity.
The researchers also found that the length of each woman's menstrual cycle can be affected by age and body mass index (BMI).
So, finding ways to talk about the menstrual cycle, menstrual experiences and body in an open and confident manner can really change how we feel about ourselves and boost our self-confidence and self-love."