Meanings of fast breeder in English

My mother was the mother of twelve chillun-shewas a fast breeder.

She was a fast breeder; she had three sets of twins.

The fast breeder reactor is not going to be commercially viable.

The new French government is to close the Superphenix fast breeder reactor near Grenoble.

Tells about the hazards of Hanford Site and about the Fast Flux Test Facility, a fast breeder nuclear reactor, which Acord toured with the writer.

They prized fast breeders.