Milli-

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"Milli" redirects here; for the village in Azerbaijan, see Birinci Milli; for the Lil Wayne song, see A Milli; for similar-sounding words, see Millie.

Milli (symbol m) is a prefix in the metric system denoting a factor of one thousandth (10−3).[1] Adopted in 1795, the prefix comes from the Latin mille, meaning one thousand (the plural is milia).

Examples:

Metric prefixes
PrefixSymbol1000m10nDecimalEnglish wordSince[n 1]
short scalelong scale
yottaY 10008 10241000000000000000000000000 septillion quadrillion1991
zettaZ 10007 10211000000000000000000000 sextillion thousand trillion1991
exaE 10006 10181000000000000000000 quintillion trillion1975
petaP 10005 10151000000000000000 quadrillion thousand billion1975
teraT 10004 10121000000000000 trillion billion1960
gigaG 10003 1091000000000 billion thousand million1960
megaM 10002 1061000000            million1960
kilok 10001 1031000            thousand1795
hectoh 10002/3 102100            hundred1795
decada 10001/3 10110            ten1795
 10000 1001            one
decid 1000−1/3 10−10.1            tenth1795
centic 1000−2/3  10−20.01            hundredth1795
millim 1000−1 10−30.001            thousandth1795
microµ 1000−2 10−60.000001            millionth1960
nanon 1000−3 10−90.000000001 billionth thousand millionth1960
picop 1000−4 10−120.000000000001 trillionth billionth1960
femtof 1000−5 10−150.000000000000001 quadrillionth thousand billionth1964
attoa 1000−6 10−180.000000000000000001 quintillionth trillionth1964
zeptoz 1000−7 10−210.000000000000000000001 sextillionth thousand trillionth1991
yoctoy 1000−8 10−24 0.000000000000000000000001 septillionth quadrillionth 1991
  1. ^ The metric system was introduced in 1795 with six prefixes. The other dates relate to recognition by a resolution of the CGPM.

References[edit]

  1. ^ "NIST Guide to the SI". See section 4.3 Decimal multiples and submultiples of SI units: SI prefixes, Table 5.
  2. ^ http://www.nikon.com/about/feelnikon/universcale/index_f.htm