μ

Symbol

μ

1. (Should we delete⁽⁺⁾ this sense?) (sciences) micro-

   μs: microsecond

2. (statistics) population mean
3. (physics) coefficient of friction
4. (physics) magnetic permeability
5. (physics) muon
6. (physics) Standard gravitational parameter
7. (dated, metrology, physics) micron

   Synonym: μm (micrometre)

   Coordinate term: Å (ångström)

Etymology

Derived from its majuscule counterpart Μ.

Letter

μ • (m) (lowercase, uppercase Μ)

1. Lower-case mu (μῦ), the 12th letter of the ancient Greek alphabet. It represented the bilabial nasal /m/. It is preceded by λ and followed by ν.

See also

• (Greek-script letters) Α α, Β β, Γ γ, Δ δ, Ε ε, Ζ ζ, Η η, Θ θ, Ι ι, Κ κ, Λ λ, Μ μ, Ν ν, Ξ ξ, Ο ο, Π π, Ρ ρ, Σ σ ς, Τ τ, Υ υ, Φ φ, Χ χ, Ψ ψ, Ω ω
• (non-Classical letters) Ϝ (W) ϝ (w), Ͷ ͷ, Ͱ (H) ͱ (h), Ϻ (S) ϻ (s), Ϟ, ϟ, Ϙ (Q) ϙ (q), Ͳ (S) ͳ (s)
• (punctuation) · ;
• (diacritics) ᾿ ῾ ◌́ ◌̀ ῀ ¨

Letter

μ • (m) (lowercase, uppercase Μ)

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

Symbol

μ • (m)

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

See also

• (Greek-script letters) Α α, Β β, Γ γ, Δ δ, Ε ε, Ζ ζ, Η η, Θ θ, Ι ι, Κ κ, Λ λ, Μ μ, Ν ν, Ξ ξ, Ο ο, Π π, Ρ ρ, Σ σ ς, Τ τ, Υ υ, Φ φ, Χ χ, Ψ ψ, Ω ω
• (non-Classical letters) Ϝ (W) ϝ (w), Ͷ ͷ, Ͱ (H) ͱ (h), Ϻ (S) ϻ (s), Ϟ, ϟ, Ϙ (Q) ϙ (q), Ͳ (S) ͳ (s)
• (punctuation) · ;
• (diacritics) ᾿ ῾ ◌́ ◌̀ ῀ ¨
• μ΄
• ͵μ