μm

See also: µM, and Appendix:Variations of "mm"

㎛ U+339B, ㎛ SQUARE MU M ← ㎚ [U+339A] CJK Compatibility ㎜ → [U+339C]

Translingual

Alternative forms

• um (proscribed)

Etymology

From μ- (“micro-”) +‎ m (“metre”).

Symbol

μm

1. (metrology) Symbol for micrometer (micrometre), an SI unit of length equal to 10⁻⁶ meters (metres).

Related terms

• µms