P (EN)

letter, symbol, symbol

letter “P”

1. the uppercase form of the letter "p"
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   The name Paul starts with a capital P.

symbol “P”

1. peta- (a prefix meaning multiplication by 10 to the power 15)
   The new telescope has a resolution of 1 PB, allowing it to capture incredibly detailed images of distant galaxies.

symbol “P”

1. symbol for phosphorus (a chemical element)
   Bananas are a good source of several minerals (e.g. K and P).
2. 1-letter abbreviation for proline used in biochemistry
   In the protein sequence, "P" stands for proline.
3. the symbol for probability used in mathematics
   If you flip a fair coin, the P(landing on heads) = 0.5.
4. symbol for power in physics (the amount of energy used in a certain amount of time)
   The formula P = I * V is used to calculate the power in an electrical circuit.
5. poise (a unit for measuring how viscous a liquid is)
   The viscosity of the liquid was measured at 10 P, indicating it was quite thick.
6. (in computer science) class of problems solvable in polynomial time
   The P ≠ NP is one of the biggest unsolved problems in computer science.