μ

Symbol

 * 1)   micro-
 * 2)  population mean
 * 3)  coefficient of friction
 * 4)  magnetic permeability
 * 5)  muon
 * 6)  micron
 * 1)  micron

Etymology
Derived from its majuscule counterpart Μ.

Letter

 * 1) Lower-case mu, the 12th letter of the ancient Greek alphabet. It represented the  . It is preceded by λ and followed by ν.

Derived terms
See also mu

Letter

 * 1) The lower case letter mu (μι), the 12th letter of the modern Greek alphabet.

Symbol

 * 1) meter (metre), the unit of length in the International System of Units