kilo-
pref.（前缀）
语源
pref.（前缀）
- One thousand (103):
一千(103)：
kilowatt.
千瓦
语源
- French
法语 - from Greek khilioi [thousand] * see gheslo-
源自 希腊语 khilioi [一千] *参见 gheslo-
kilo-
prefix
denoting 103 (1000)
⇒
kilometrek
(in computer technology) denoting 210 (1024): kilobyte: in computer usage, kilo- is restricted to sizes of storage (eg kilobit) when it means 1024; in other computer contexts it retains its usual meaning of 1000
Origin
from French, from Greek khilioi thousandkilo-
Word Origin
1
a Greek combining form meaning “thousand,” introduced from French in the nomenclature of the metric system (kiloliter); on this model, used in the formation of compound words in other scientific measurements (kilowatt).
Origin
< French, representing Greek chī́lioi a thousand
Related Words
- kilometer
- chilo-
- kilobar
- kilobit
- kilobyte
- kilocalorie
kilo-1. a prefix denoting 103 of a given unit, as in kilometre. Symbol: k
2. Computers a prefix denoting 210 (1024) of a given unit, as in kilobyte. Symbol: k
[French, representing Greek chilioi thousand]kilo-
combining form
kiloton
combining form
ETYMOLOGY French, modification of Greek chilioi
: thousandkiloton
kilo-
combining form
- (used commonly in units of measurement) denoting a factor of 1,000（一般用于计量单位）表示“一千”：
-
kilojoule
kilolitre.
词源
via French from Greek khilioi 'thousand'.
1901 J. A. Fleming Handbk. forElectr. Laboratory I. i. 68The standard *kilo-ampere balance.
1972 Physics Bull. Mar. 152/3A few calculations, taking into account material and engineering limitations show that the voltage produced is low, say up to 10 V, but currents of kiloampères are readily achieved.
1928 N. Shaw Man. Meteorol. II. p. xxxii,*Kilobar, a name which it is proposed to substitute for the word ‘millibar’ to express a pressure of 1000 dynes per square centimetre, on the ground that the word ‘bar’ had been used in Physical Chemistry to denote the C.G.S. unit of pressure (1 dyne per square centimetre) before it was employed in meteorology to express a million dynes per square centimetre.
1971 I. G. Gass et al. Understanding Earth iii. 60/2Olivine Mg2SiO4 can recrystallize at pressures of over 150 kilobars to a new polymorphic form called a spinel structure.
1961 Gray & Graham Radio Transmitters i. 3In the case of the transmission of business-machine or telemetered data, it is more usual to express the speed in bits or *kilobits (1,000 bits) per second.
1972 Sci. Amer. Sept. 126/3High-speed leased lines provide a data speed of 48 to 240 kilobits per second.
1951 N.Y. TimesMag. 22 Apr. 35‘*Kilobuck’..is a scientist's idea of a short way to say ‘a thousand dollars’.
1955 Sci. Amer. June 126/2This instrument became the prototype of a commercial spectroscope which sells for about a kilobuck.
1970 Times 30 June 22/7 Its storage capacity could be 2,048 *kilobytes compared with a maximum of 512 kilobytes for the 360/50.
1973 Physics Bull. Oct. 626/1It has a 64 kilobyte store with 4·8 megabytes of exchangeable disc storage.
1946 Science 2 Aug. 92/1 We came to the Project thinking in terms of millicuries and found that we had to face problems of curies and sometimes..even *kilocuries.
1968 Listener 27 June 828/1 This power package contained as its energy source 17 kilocuries of Plutonium 238.
1950 Glasstone Sourcebk. Atomic Energy iii. 82/1One , equal to a thousand electron volts, called the *kilo-electron volt, is represented by Kev. [ sc. energy unit]
1971 D. W. Sciama Mod. Cosmol. ii. 31The distinction between X- and γ-rays is a somewhat arbitrary one, but..we may take the dividing line to be an energy of 100 keV (kilo-electron volts).
1895 F. C. Baily in Rep. Brit. Assoc. Adv. Sci. 206Gaussage would be about 50 in small transformers, up to 40,000 in large dynamos. The latter could be conveniently reckoned in *kilogausses.
1973 Sci. Amer. Oct. 21/1If the magnetic field at the surface of a continuous-sheet guideway is 20 kilogauss (about the field strength at the pole face of a good magnet), the lift force is 60 pounds per square inch.
1929 Daily Express 11 Jan. 3/6 A national common frequency of 1,040 *kilohertz (288·5 metres).
1935 Turner & Banner Electr. Measurements i. 4Cycle per second. For radio purposes this is sometimes termed the ‘Hertz’ and a practical unit called the ‘Kilohertz’ or 1000 cycles per second used. [ Note]
1967 Electronics 6 Mar. 183/1 Since the power is limited, the bandwidth has to be restricted to 500 kilohertz.
1893 T. O'C. Sloane Stand. Electr. Dict. 317*Kilojoule.
1938 Jrnl. R.Aeronaut. Soc. XLII. 885Formation of frost on the wing is accompanied by a rise in temperature which raises the deposit to 0°C. A curve is given showing the energy in kilojoules necessary to remove ice.
1974 Times 20 Feb. 12 Each of the colourfully illustrated cards shows a different food, together with its value in carbohydrate, calories and kilo-joules (the measurement that will be used instead of calories when Britain goes metric).
1922 Encycl. Brit. XXX. 301/2The most remote cluster known is distant 67 *kiloparsecs or 200,000 light years.
1970 Sci. Jrnl. Mar. 71/3The solar system is located on the mid-plane of the disc 10 kiloparsecs from the galactic centre.
kilo-
word-forming element meaning "one thousand," introduced in French 1795, when the metric system was officially adopted there, from Greek khilioi "thousand," of unknown origin.
ORIGIN: French , from Greek khilioi thousand: see -o-
☞ kilo
kilo-
combining form
Etymology: French, modification of Greek chilioi — more at mile
: thousand — chiefly in names of units in the metric system
< kiloampere >
< kilogauss >
< kilojoule >
< kiloampere >
< kilogauss >
< kilojoule >
kilo-
Etymology
From French, kilo- irregularly derived from χίλιοι (chilioi ) "one thousand". The "correct" form would be chili-, resulting in forms such as chiliasm. But the French, when creating the prefix had to avoid a possible (standard) pronunciation of chi as /ʃi/, too close to the vulgar verb chier.
Prefix
| SI prefix | ||
| k | ||
| Previous: | hecto- | |
| Next: | mega- | |
- In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 1,000. Symbol: k
- (computing) Multiplying the unit to which it is attached by 210 (1024)
Usage notes
Synonyms
Antonyms
Related terms
前缀：kilo- 表示“一千”
kilogram 公斤（kilo+gram克→一千克，公斤）
kilometer 公里（kilo+meter米→一千米，公里）
kilowatt 千瓦（kilo+watt瓦）
前缀：kilo- 千
kilogram 千克，公斤
kilowatt 千瓦（电力）
kilometer 千米，公里
kilocycle 千周
kiloton 千吨
kilovolt 千伏（电压）
kilolitre 千升
kilocalorie 千卡（热量）
前缀：kilo-
【词根含义】：千
【同源单词】：kilogram, kilogramme