Definition from Wiktionary, the free dictionary
Jump to: navigation, search
See also: Cm, CM, cM, and .cm


Alternative forms[edit]



  1. (metrology) Symbol for the centimeter (centimetre), an SI unit of length equal to 10−2 meters (metres).
    • 2012 June 20, Palmer, Jason, “Dark matter tracks could give earliest view of Universe”[1],, retrieved 2012-06-20:
      Researchers have come up with a way to glimpse the infant Universe by decoding the earliest ripples in its light.
      They say this can be achieved by capturing the specific radio wavelength of 21cm from the heavens.
      The trick is to tell the difference between 21cm waves from our galaxy and those from distant, ancient sources.


Cardinal number[edit]


  1. A Roman numeral representing nine hundred (900).

See also[edit]