bicornate uterus

https://doi.org/10.1351/goldbook.10456

Uterus that is divided into two lateral horns as a result of imperfect fusion of the paired embryonic tubes from which the uterus is formed.

Note: In humans it is a uterine malformation, but in some mammalian species, including rodents and pigs, it is normal.
Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 729 [Terms] [Paper]