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Vinony

superfetation

noun

  1. the act of conceiving while already pregnant
  2. simultaneous presence of multiple stages of developing offspring in one animal
L1532458 on Wikidata ↗

Wiktionary

Pronunciation: /suːpəfəˈteɪʃən/

noun

Etymology: From Latin superfetare (“conceive while pregnant”), from super- + fetus.

  1. The formation of a fetus while another fetus is already present in the uterus.
  2. An excessive accumulation; a superfluous addition.

    “1992, Geoffrey Wall, translator of Gustave Flaubert, Madame Bovary These gentlemen were greatly astonished at Bovary's romantic ideas, and the pharmacist hurried in to say to him: "This velvet looks to me rather a superfetation. Besides, the expense..."”