Glossary of terms used on this site
M
| Term | Definition |
|---|---|
| Magnetic flux density |
A measure of the magnetic effect induced in a medium by an external field. Unit tesla, symbol T. |
| Magnox reactor |
A thermal reactor named after the magnesium alloy in which the uranium metal fuel is contained. The moderator is graphite and the coolant is carbon dioxide gas. |
| Man sievert |
See collective effective dose. |
| Moderator |
A material used in nuclear reactors to reduce the energy and speed of the neutrons produced as a result of fission. |
| Molecule |
The smallest portion of a substance that can exist by itself and retain the properties of the substance. |
| Mutation |
A chemical change in the DNA in the nucleus of a cell. Mutations in sperm or egg cells or their precursors may lead to inherited effects in children. Mutations in body cells may lead to effects in the individual. |
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