superfétation - significado y definición. Qué es superfétation
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Qué (quién) es superfétation - definición

SIMULTANEOUS PRESENCE OF MULTIPLE STAGES OF DEVELOPING OFFSPRING IN ONE ANIMAL
Superfoetation; Double pregnancy; Superpregnancy

Superfetation         
·noun The formation of a fetus at the result of an impregnation occurring after another impregnation but before the birth of the offspring produced by it. This is possible only when there is a double uterus, or where menstruation persists up to the time of the second impregnation.
superfetation         
[?su:p?fi:'te??(?)n]
¦ noun
1. Medicine & Zoology fertilization of a second ovum after the start of a pregnancy, leading to fetuses of different ages.
2. the accretion of one thing on another.
Origin
C17: from Fr. superfetation or mod. L. superfetatio(n-), from L. superfetare, from super- 'above' + fetus 'foetus'.
Superfetation         
Superfetation (also spelled superfoetation – see fetus) is the simultaneous occurrence of more than one stage of developing offspring in the same animal.

Wikipedia

Superfetation

Superfetation (also spelled superfoetation – see fetus) is the simultaneous occurrence of more than one stage of developing offspring in the same animal.

In mammals, it manifests as the formation of an embryo from a different menstrual cycle while another embryo or fetus is already present in the uterus. When two separate instances of fertilisation occur during the same menstrual cycle, it is known as superfecundation.