
1) All women have this regularly 2) Animal breeding 3) Catamenia 4) Discharge 5) Emission 6) Expelling 7) Flow 8) Menses 9) Menstruum 10) Period
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https://www.crosswordclues.com/clue/menstruation

1) Catamenia 2) Hypermenorrhea 3) Menorrhagia 4) Menses 5) Monthlies 6) Oligomenorrhea
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https://www.crosswordclues.com/clue/menstruation

• (n.) The discharge of the menses; also, the state or the period of menstruating.
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http://thinkexist.com/dictionary/meaning/menstruation/

the cyclic, physiologic discharge through the vagina of blood and mucosal tissues from the nonpregnant uterus; it is under hormonal control and normally recurs, usually at approximately four-week intervals, in the absence of pregnancy during the reproductive period (puberty through menopause) of the female of the human and a few species of primates...
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http://users.ugent.be/~rvdstich/eugloss/DIC/dictio53.html

periodic discharge from the vagina of blood, secretions, and disintegrating mucous membrane that had lined the uterus.[19 related articles]
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http://www.britannica.com/eb/a-z/m/72

Periodic discharge of blood and tissue from the uterus. From puberty until menopause, menstruation occurs about every 28 days when a woman is not pregnant.
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http://www.cancer.gov/dictionary?expand=M

Specifically, the monthly loss of blood (period), representing shedding of uterine (womb) endometrium, in women of reproductive age; in general, the whole monthly cycle of hormone, structural, and functional changes in such women, punctuated by menstrual blood loss. After each period, the endometriu...
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http://www.daviddarling.info/encyclopedia/M/menstruation.html

In the absence of pregnancy, menstruation (‘a period`) is a monthly event that occurs when a woman`s thickened womb lining breaks down and is released out of the body through the vagina.
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http://www.encyclo.co.uk/local/20560

The cyclic, physiologic discharge of blood and mucosal tissues through the vagina from the non-pregnant uterus. It is under hormonal control and recurs at approximately 4 week intervals.
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http://www.encyclo.co.uk/local/20905

<physiology> The cyclic, physiologic discharge through the vagina of blood and mucosal tissues from the nonpregnant uterus, it is under hormonal control and normally recurs, usually at approximately four week intervals, in the absence of pregnancy during the reproductive period (puberty through menopause) of the female of the human and a few ...
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http://www.encyclo.co.uk/local/20973

(men″stroo-a´shәn) the periodic discharge from the vagina of blood and tissues from a nonpregnant uterus; the culmination of the menstrual cycle. Menstruation occurs every 28 days or so between puberty and menopause, except during pregnancy, and the flow lasts about 5 days, the times varying from woman to woman. S...
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http://www.encyclo.co.uk/local/21001

The cyclical shedding of the uterine lining in response to stimulation from estrogen and progesterone.
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http://www.encyclo.co.uk/local/21429

a stage of the female reproductive cycle. An ovum (egg) matures and is released every month. Hormones prepare the uterus for possible implantation. If pregnancy does not occur, the uterine lining (blood and tissue) is shed and expelled (the menstrual period).
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http://www.encyclo.co.uk/local/22225
Men`stru·a'tion noun The discharge of the menses; also, the state or the period of menstruating.
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http://www.encyclo.co.uk/webster/M/47

Menstruation: The periodic blood that flows as a discharge from the uterus. Also called menorrhea, the time during which menstruation occurs is referred to as menses. The menses occurs at approximately 4 week intervals to compose the menstrual cycle. Common Misspellings: menstration, mensuration, menustration
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http://www.medterms.com/script/main/art.asp?articlekey=4355

(men;stroo-a;shun) The discharge of blood and tissue from the uterus at the end of the menstrual cycle.
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http://www.mhhe.com/biosci/abio/glossary.mhtml

The monthly bleeding occurring in sexually mature women at intervals of about 28 days. Menstruation occurs in nonpregnant women from puberty to menopause. Menstruation is a part of the menstrual cycle in which the uterine lining is shed if fertilization does not occur. Synonym(s): Period Broader term(s): Menstrual Cycle
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http://www.pregnology.com/

Shedding of the uterine lining by bleeding, which (in the absence of pregnancy) normally occurs about once a month in the mature female.
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https://www.donorconcierge.com/blog/glossary-of-surrogacy-terms

(Period) Loss of lining of the uterus (womb) about once a month if an egg cell is not fertilised
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https://www.encyclo.co.uk/local/20805
menses noun the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause; `the women were sickly and subject to excessive menstruation`; `a woman does not take the gout unless her menses be stopped`--Hippocrates; `the seme...
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https://www.encyclo.co.uk/local/20974

Regular or periodic discharge of a bloody fluid from the uterus,
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https://www.encyclo.co.uk/local/22789

Regular or periodic discharge of a bloody fluid from the uterus,
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https://www.encyclo.co.uk/local/23319

a cyclical process of the endometrium shedding its lining, along with discharge from the cervix and vagina, from the vaginal opening. This process results from the mature egg cell (ovum) not being fertilized by a sperm cell as it travels from one of the ovaries down a fallopian tube to the uterus, in the process called ovulation.
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https://www.stanfordchildrens.org/en/topic/default?id=glossary---adolescent

a monthly process (except during pregnancy) that involves a discharge of bloody fluid from the uterus through the vagina; the discharge contains tissue shed from the endometrium (the lining of a woman's uterus) during the reproductive cycle.
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https://www.stanfordchildrens.org/en/topic/default?id=glossary---pregnancy-

the monthly discharge of blood from the uterus of nonpregnant women
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https://www.vocabulary.com/lists/310894
No exact match found.