logarithm
/ˈlɔɡəˌrɪðəm/
noun
- A mathematical function that tells you how many times one number must be multiplied by itself to get another number; for example, the logarithm of 100 to base 10 is 2 because 10 × 10 = 100.
- The calculator has a button for finding the logarithm of any number.
- In science class, they learned how logarithms help measure earthquake strength.
- To solve the equation, she took the logarithm of both sides.