superfétation

== French == === Etymology === From Latin superfeto +‎ -tion. === Pronunciation === IPA(key): /sy.pɛʁ.fe.ta.sjɔ̃/ === Noun === superfétation f (plural superfétations) (biology) superfetation (formation of a fetus while another fetus is already present in the uterus) (figuratively, literary) superfetation (superfluous addition) ==== Derived terms ==== superfétatoire === Further reading === “superfétation”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012