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单词 superfetation
释义

superfetation

enUK

su·per·fe·ta·tion

S0896500 (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.

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

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]

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
Thesaurus
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
Translations

superfetation

enUK

superfetation

 [soo″per-fe-ta´shun] the fertilization of an ovum and subsequent development of another embryo (fetus) when one is already present in the uterus, a result of fertilization of ova during different menstrual cycles, yielding fetuses of different ages.

su·per·fe·ta·tion

(sū'pĕr-fe-tā'shŭn), The presence of two fetuses of different ages, not twins, in the uterus, due to the impregnation of two ova liberated at successive periods of ovulation; an obsolete concept. Synonym(s): hypercyesis, hypercyesia, multifetation, superimpregnation

superfetation

(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.

superfetation

Obstetrics Fertilization and subsequent development of a 2nd ovum after the 1st has already implanted in the uterus; superfetation provides the theoretic explanation for the difference in times of delivery of fraternal 'twins'. Cf Superfecundation.

superfetation

The rare occurrence of two or more fetuses of different ages in a womb that are the result of fertilizations occurring in different menstrual cycles.
LegalSeeSuperfoetation

superfetation

enUK
  • noun

Words related to superfetation

noun fertilization of a second ovum after a pregnancy has begun

Related Words

  • fecundation
  • fertilisation
  • fertilization
  • impregnation
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更新时间:2024/12/22 22:45:13