superimpregnation

superimpregnation

A female rabbit can experience superimpregnation, resulting in a litter with two different fathers.

Definition
  1. Noun:
    • Superimpregnation refers to the fertilization of an ovum or ova by more than one spermatozoon, or the fertilization of an egg during a subsequent ovulation cycle after a pregnancy has already begun, resulting in multiple conceptions at different times. This term is primarily used in biology and reproductive science.
Usage Examples
  • Noun:
    • Superimpregnation can occur in some animal species, leading to offspring with different fathers. (The fertilization of an egg after an initial pregnancy has started.)
    • The study examined cases of superimpregnation in rabbits to understand multiple paternity. (Scientific investigation of multiple fertilizations in a single pregnancy.)
Advanced Usage
  • "Superimpregnation in mammals": a specific biological phenomenon where a female becomes pregnant again while already carrying a fetus, often resulting in twins or triplets with different gestational ages.
    • Superimpregnation in humans is extremely rare, but it has been documented in cases of superfetation. (The occurrence of a second pregnancy during an existing one.)
Variants and Related Words

  • Superimpregnate (verb): to fertilize an ovum or ova during an existing pregnancy.

    • The female cat can superimpregnate if she mates again shortly after conception. (To become pregnant again while already pregnant.)

  • Superimpregnation (noun): the state or process of being fertilized multiple times.

    • The term superimpregnation is often used interchangeably with superfetation in some contexts. (The condition of multiple fertilizations.)
Synonyms
  • Superfetation: the development of a second fetus during an existing pregnancy, often used as a synonym for superimpregnation.
  • Multiple fertilization: the fertilization of more than one egg or ovum at different times.
Related Idioms
  • No common idioms: This term is technical and specific to biological and medical contexts, with no idiomatic usage in everyday language.