fetus in fetu

English

Alternative forms

• foetus in foetu

Etymology

From Latin fētus in fētū.

Noun

fetus in fetu (plural fetuses in fetu)

1. (medicine, obstetrics) A fetus growing inside the body of another fetus, either from an unsuccessful twin pregnancy, or as a tumorlike growth.

Coordinate terms

• chimeric
• conjoined
• heteropagus
• teratoma
• vanishing twin syndrome

Translations

fetus growing inside another

• Finnish: loiskaksonen