superfecundation


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superfecundation

 [soo″per-fe″kun-da´shun]
fertilization of two or more ova during the same ovulatory cycle, by separate coital acts.

superfecundation

(so͞o′pər-fē′kən-dā′shən, -fĕk′ən-)
n.
Fertilization of more than one ovum within a single menstrual cycle by separate acts of coitus, especially by different males.

superfecundation

Obstetrics Fertilization of a 2nd ovum by sperm from a different act of coitus, after a first ovum has been fertilized; SF explains the rare cases in which twins have different fathers–ouch! See Higher multiples, Twin. Cf Superfetation.

superfecundation

The fertilization of more than one ovum within a single menstrual cycle by separate acts of coitus, so that twins may be born with different fathers.
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References in periodicals archive ?
Known as heteropaternal superfecundation, it happens when a woman who produces two eggs has sex with different men and each man fertilises one egg each