safety rod
Nuclear Physics
noun
A retractable rod of a material which readily absorbs neutrons, inserted into the core of a nuclear reactor in an emergency to slow or stop the reaction.
Origin
1940s; earliest use found in Review of Modern Physics.
- mountain dew
- mountain dock
- mountain duck
- mountain eagle
- mountain ebony
- mountained
- mountaineer
- mountaineering
- mountaine flax
- mountainette
- mountain everlasting
- mountain fastness
- mountain fern
- mountain fever
- mountain finch
- mountain flax
- mountain flower
- mountain flox
- mountain-folding
- mountain folk
- mountain folks
- mountain fringe
- mountain gazelle
- mountain gem
- mountain goat