Incubator

During the Last Great Time War, the Glass Dalek casings acted as incubators. Humans inside of them mutated into Daleks. (PROSE: Engines of War)

In the early 2020s, the equipment at Suki Cheng's laboratory included a super fast incubator. The Thirteenth Doctor needed it to examine the Praxeus pathogen. (TV: Praxeus)