superfetation


Also found in: Thesaurus, Medical, Legal, Wikipedia.

su·per·fe·ta·tion

 (so͞o′pər-fē-tā′shən)
n.
Formation or development of a second fetus when one is already present in the uterus, occurring normally in certain vertebrate species.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

superfetation

or

superfoetation

n
(Physiology) physiol the presence in the uterus of two fetuses developing from ova fertilized at different times
[C17 superfetate, from Latin superfētāre to fertilize when already pregnant, from super- + fētāre to impregnate, from fētus offspring]
superfetate adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

su•per•fe•ta•tion

(ˌsu pər fiˈteɪ ʃən)

n.
the fertilization of an ovum in a female mammal already pregnant.
[1595–1605; < Latin superfētā(re) to conceive again while still pregnant]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

superfetation

a conception occurring after the onset of a pregnancy from an earlier conception.
See also: Birth
a conception occurring during a pregnancy from an earlier conception.
See also: Biology
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.superfetation - fertilization of a second ovum after a pregnancy has begun; results in two fetuses of different ages in the uterus at the same time; "superfetation is normal in some animal species"
fecundation, fertilisation, fertilization, impregnation - creation by the physical union of male and female gametes; of sperm and ova in an animal or pollen and ovule in a plant
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
superfécondation

su·per·fe·ta·tion

n. superfetación, fecundación de dos óvulos en el mismo útero en un intervalo de tiempo corto aunque correspondientes a dos períodos menstruales diferentes.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
Doctors said size differences - Daniel was 7Ib and Alice 6Ib 5oz - showed the rare quirk superfetation, where a foetus forms in the womb while another is growing.
Doctors said size differences -- Daniel was 7Ib and Alice 6Ib 5oz -- showed the rare quirk superfetation, where a foetus forms in the womb while another is growing.
Summary: Doctors stated that this rare phenomenon is known as "superfetation"
In a very rare phenomenon known as superfetation, a second twin is conceived weeks or months after the first - because the woman continues to ovulate.
While literature rescues youth from individual limitations and enables it to act and think more as spectators of all time, and sharers of all existence, the passion for reading may be excessive, and books which from the silent alcoves of our nearly 5,500 American libraries rule the world more now than ever before, may cause the young to neglect the oracles within, weaken them by too wide reading, make conversation bookish, and overwhelm spontaneity and originality with a superfetation of alien ideas.
It was an Incidental finding of intrauterine pregnancy while doing an autopsy of a patient who died due to ruptured ectopic pregnancy; Cause being fertilization of two ova (Superfetation).
We emphasize that all the females that we dissected contained a single brood of developing embryos, indicating the lack of superfetation in this species.
Superfetation is suspected when fetuses of different sizes are born together or when two fetuses or two litters are born at widely separated times.
Moreover, in antiquity, superfetation --the conception of a second child after the woman is already pregnant from a previous act of intercourse--was considered to be a viable cause of twinning, the most common form of human multiple birth.
Furthermore, some poeciliids are able to accommodate several clutches simultaneously, so-called superfetation (e.g., Turner 1937; Thibault & Schulz 1978; Reznick & Miles 1989).
Other possible factors are superfecundation, superfetation, and ovarian hyperstimulation.
Her condition was eventually identified as 'superfetation', meaning two babies are conceived at different times, born on the same day, yet medically speaking they're not considered to be twins.