In vitro fertilization
IVF, a laboratory procedure in which sperm are placed with an unfertilized egg in a Petri dish to achieve fertilization. The embryo is then transferred into the uterus to begin a pregnancy or cryopreserved (frozen) for future use. IVF was originally devised to permit women with damaged or absent Fallopian tubes to have a baby. Normally a mature egg is released from the ovary (ovulated), then enters the Fallopian tube, and waits in the neck of the tube for a sperm to fertilize it. With defective Fallopian tubes, this is not possible. The first IVF baby, Louise Joy Brown, was born in England in 1978. In vitro fertilization literally means "fertilization in glass." A child born by in vitro fertilization is inaccurately known a "test tube baby."

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in vitro fertilization n fertilization of an egg in a laboratory dish or test tube specif mixture usu. in a laboratory dish of sperm with eggs which have been surgically removed from an ovary that is followed by implantation of one or more of the resulting fertilized eggs into a female's uterus abbr. IVF

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(IVF) removal of a secondary oocyte, fertilization of it in a culture medium in the laboratory, and placement of the dividing zygote into the uterus.

Medical dictionary. 2011.

Look at other dictionaries:

  • in vitro fertilization — noun : fertilization of an egg in a laboratory dish or test tube ; specifically : fertilization achieved by the mixture usually in a laboratory dish of sperm with eggs that have been surgically removed from an ovary followed by implantation of… …   Useful english dictionary

  • in vitro fertilization — a specialized technique by which an ovum, esp. a human one, is fertilized by sperm outside the body, with the resulting embryo later implanted in the uterus for gestation. [1970 75] * * * ▪ medicine Introduction also called  test tube conception  …   Universalium

  • in vitro fertilization — apvaisinimas in vitro statusas T sritis augalininkystė apibrėžtis Dirbtinis izoliuotų augalo žiedų ar kitų organų (mezginės, sėklapradžio) apvaisinimas ne motininiame organizme, o mėgintuvėlyje ar Petri lėkštelėje, t. y. dirbtinėmis sąlygomis.… …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • in vitro fertilization — in vi|tro fer|ti|li|za|tion [ın ˌvi:trəu fə:tılaıˈzeıʃən US trou fə:rtələ ] n [U] technical [Date: 1900 2000; : Latin; Origin: in vitro in glass ] a process in which a human egg is fertilized outside a woman s body …   Dictionary of contemporary English

  • in vitro fertilization — in vitro fertili,zation noun uncount IVF …   Usage of the words and phrases in modern English

  • in vitro fertilization — in vi′tro fertiliza′tion n. srg a technique by which an ovum is fertilized with sperm in a laboratory dish and subsequently implanted in a uterus for gestation Abbr.: IVF • Etymology: 1970–75 …   From formal English to slang

  • in vitro fertilization — noun Date: 1969 fertilization of an egg in a laboratory dish or test tube; specifically fertilization by mixing sperm with eggs surgically removed from an ovary followed by uterine implantation of one or more of the resulting fertilized eggs… …   New Collegiate Dictionary

  • in vitro fertilization — (IVF) fertilization of an ovum outside the body, the resultant zygote being incubated to the blastocyst stage and then implanted in the uterus. The technique, pioneered in Britain, resulted in 1978 in the birth of the first test tube baby. IVF is …   Medical dictionary

  • in vitro fertilization — IVF fertilization of an ovum outside the body, the resultant zygote being incubated to the blastocyst stage and then implanted in the uterus. The technique, pioneered in Britain, resulted in 1978 in the birth of the first test tube baby. IVF may… …   The new mediacal dictionary

  • in vitro fertilization — noun The fertilization of an egg by sperm outside of a womans body; normally used as a treatment for infertility …   Wiktionary

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