kilo-

kilo-

pref.

One thousand (10³): kilowatt.

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[French, from Greek khlioi, thousand; see gheslo- in Indo-European roots.]

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kilo-

prefix

1. (Mathematics & Measurements / Units) denoting 10³ (1000) kilometre Symbol k

2. (in computer technology) denoting 2¹⁰ (1024): kilobyte: in computer usage, kilo- is restricted to sizes of storage (e.g. kilobit) when it means 1024; in other computer contexts it retains its usual meaning of 1000

[from French, from Greek khilioi thousand]

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kilo-

1. A prefix that means:

2. One thousand, as in kilowatt, one thousand watts.

3. 2¹⁰ (that is, 1,024), which is the power of 2 closest to 1,000, as in kilobyte.