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单词 ovulation
释义

ovulation


ov·u·late

O5219500 (ŏv′yə-lāt′, ō′vyə-)intr.v. ov·u·lat·ed, ov·u·lat·ing, ov·u·lates To produce ova; discharge eggs from the ovary.
[From ovule.]
ov′u·la′tion n.ov′u·la·to′ry (-lə-tôr′ē) adj.

o·vu·la·tion

(ō′vyə-lā′shən, ŏv′yə-lā′shən) The release of eggs or egg cells from the ovary in female animals, regulated in mammals by hormones of the pituitary gland. In humans and most other primates, ovulation usually occurs midway through the menstrual cycle.

ovulation

The release of a ripe egg from a female’s ovary. See ovarian cycle.
Thesaurus
Noun1.ovulation - the expulsion of an ovum from the ovary (usually midway in the menstrual cycle)biological process, organic process - a process occurring in living organismsanovulation - the absence of ovulation due to immaturity or post-maturity or pregnancy or oral contraceptive pills or dysfunction of the ovary
Translations
ovulazione

Ovulation


ovulation

[‚äv·yə′lā·shən] (physiology) Discharge of an ovum or ovule from the ovary.

Ovulation

 

the discharge of the ovum from the ovary into the body cavity. The follicle that contains the ovum ruptures during ovulation; in humans and mammals it is called the Graafian follicle. Ovulation occurs periodically in females of most vertebrates and in women. In some animals, for example, the rabbit, cat, and polecat, it is triggered by copulation. It is stimulated by gonadotrophic hormones, which are secreted by the pituitary gland and are controlled by the central nervous system. In birds the number of daylight hours is a signal for ovulation; in fish, water temperature.

Ovulation


ovulation

 [ov″u-la´shun] the discharge of a secondary oocyte from the graafian follicle; in an adult woman this normally occurs at intervals of about 28 days and alternates between the two ovaries. As a rule, only one secondary oocyte is produced, but occasionally ovulation produces two or more; if more than one subsequently become fertilized, the result may be multiple births, such as twins or triplets. adj., adj ov´ulatory.
Ovulation takes place approximately at the midpoint of the menstrual cycle, 14 days after the onset of menstruation. During the preceding weeks, a graafian follicle (cell cluster in the ovary containing the oocyte) grows from the size of a pinhead to that of a pea. At the moment of ovulation, the follicle bursts open and the ovum is discharged.
The discharged ovum enters the fallopian tube adjoining the ovary and moves toward the uterus; if it encounters a spermatozoon while it is still alive (about 48 hours), the two merge and fertilization takes place, usually in the fallopian tube. The fertilized ovum then makes its way to the uterus, where it becomes embedded in the prepared wall as the first stage of growth of the fetus (see illustration, and see also reproduction). If fertilization does not take place the ovum loses its vitality and the blood and tissue lining the uterus are shed in the menstrual flow.Ovulation.
ovulation method cervical mucus method; see discussion under contraception.

ov·u·la·tion

(ov'yū-lā'shŭn, ō'vū-), Release of an ovum from the ovarian follicle.

o·vu·la·tion

(ov'yū-lā'shŭn) Release of an oocyte from the ovarian follicle.

ovulation

The release of an OVUM from a mature Graafian follicle in the OVARY. Ovulation occurs about half way between the beginning of consecutive menstrual periods, usually about 14 days before the expected date of onset of the next period.

ovulation

the bursting of the OVARIAN FOLLICLE (See also GRAAFIAN FOLLICLE on the surface of the ovary with the release of an egg which then normally passes into the OVIDUCT.

Ovulation

The phase of the female monthly cycle when a developed egg is released from the ovary into the fallopian tube for possible fertilization.Mentioned in: Contraception, Dysmenorrhea, Emergency Contraception, Hormone Replacement Therapy, Infertility Therapies, Menopause, Ovarian Cysts, Recurrent Miscarriage

Patient discussion about Ovulation

Q. i just have my period last november 25 and ended on 28.when is my possible fertile and ovulation period please help me identify my fertile and ovulation periodA. If someone knew it, it'd solve the human race many problems with fertility. The problem is that ovulation (and thus, the period of possible fertility) happens 14 days BEFORE the onset of menses, so you know about it only retrospectively.
However there ways such as serial body temperature measuring, along with kits that measures the level of hormones in the urine in order to estimate the time of the coming ovulation, and help in timing intercourse.
You may read more about it here (www.mayoclinic.com/health/ovulation-signs/AN01521 ) but anyway, consulting a doctor (e.g. gynecologist) may be wise.

More discussions about Ovulation

ovulation


  • noun

Antonyms for ovulation

noun the expulsion of an ovum from the ovary (usually midway in the menstrual cycle)

Related Words

  • biological process
  • organic process

Antonyms

  • anovulation
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更新时间:2025/2/7 12:11:18