b
- noun
- Specialized
:
barn
- In nuclear physics, the interaction probability can be expressed in units called b, which measure very small areas.
Examples
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The cross-section of the particle collision is measured in b, indicating the likelihood of interactions at the atomic level.
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To understand the reaction dynamics, scientists often convert measurements to b for a clearer comparison of particle interactions.
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But suppose we have a particle B in an electric field.
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And for heavier atoms, B is very small.
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In the first week of the program, student "A" talked out ten times and owed nine minutes from the 10-minute free time activity, while student "B" talked out nine times and owed six minutes.
Academic text (2005) -
"B... but..." she stammered.
Fiction book (2002)
Synonyms
7
9.6
A very small unit of area used in nuclear physics equal to 10⁻²⁸ square meters
Compounds
- Specialized
12
3.9
A serious liver infection caused by a virus spread by blood, sexual contact, or other body fluids
- Specialized
3
3.2
A vitamin that dissolves in water and helps the body use energy from food
- Specialized
1
3.4
A group of vitamins that dissolve in water and help cells use food for energy
- Specialized
1
5.7
A white blood cell from bone marrow that makes antibodies to fight infection
- Specialized
A soil layer below the top layer that holds minerals and dead plant material carried down
- Specialized
A tiny particle made of a bottom quark and another quark that exists for a very short time
- Specialized
A large jet military plane that flies long distances to drop bombs
- Specialized
A scan that uses sound waves to make a picture of the back of the eye
- Specialized
A green substance in plant leaves that helps them make food from sunlight
- Archaic
A power source used in old radios to give positive voltage to a vacuum tube plate
- Specialized
A soil layer under the topsoil that holds minerals and bits of dead plants
- Specialized
A rare inherited blood condition in which blood does not stop bleeding easily
A US one dollar coin with Susan B Anthony's picture made from 1979 to 1981 and in 1999
A poison made by a kind of bacteria that can make people very sick
- Specialized
A group of substances in food that dissolve in water and help the body make energy
Surface Forms
Etymology
B in physics stands for the unit barn. Scientists once joked that a particle target was as 'big as a barn', so they named the area barn and write it as b to show how likely particles are to hit each other.