pebble bed
noun
1 Geology a deposit of conglomerate containing pebbles, especially one from which they readily work loose with weathering.
2 Nuclear Physics a nuclear reactor in which the fuel elements are in the form of pellets, often with a coating of moderator; usually attributive.
Origin
Mid 19th century; earliest use found in Joseph Prestwich (1812–1896), geologist.
- principle (or law) of parsimony
- pring
- pringle
- pringling
- prink
- prinker
- prinkle
- prinkum-prankum
- prinky
- Prins reaction
- printability
- printable
- printanier
- printanière
- print buffer
- print butter
- print chain
- print cloth
- print cutter
- printed circuit
- printed circuitry
- printed matter
- printed-out
- printed paper