Inside the Universes

'superfetation'

[superfetation.n.01] as in: fertilization of a second ovum after a pregnancy has begun; results in two fetuses of different ages in the uterus at the same time

Examples:
superfetation is normal in some animal species

Origins

					superfetation (English)
└── superfetare (Latin)
    ├── fetus (Latin)
    └── super- (Latin)