si
Definitions
Electronics
(written as SI)
Abbreviation of Système International d'unités. French for International System of Units. A system utilized for measurement of physical quantities using internationally accepted fundamental units which are defined in an absolute manner. Currently, the base, or fundamental, SI units are: the second, for time; the kilogram, for mass; the meter, for distance; the ampere, for electric current; the kelvin, for temperature; the mole, for amount of substance; and the candela, for luminous intensity. In addition, there are other units defined algebraically in terms of these base units. These include hertz, joule, watt, coulomb, volt, and ohm. Furthermore, the SI allows the use of certain non-approved units, such as electronvolt, bel, and angstrom.- chemical symbol forsilicon
(written as Si)
- acronym forSystème International d'Unités
(written as SI)
- abbreviation in Internet addresses, the top-level domain for Slovenia
Astronomy
- acronym forSystème International
(written as SI)
- acronym forSystème International
(written as SI)
Cars & Driving
- acronym forspark ignition
(written as SI)
- noun ignition initiated by an electric spark in a spark ignition engine.
- acronym forsuperimpose
(written as SI)
- verb to lay an image on top of another image so that both are visible.
Medical
- acronym forinternational system of metric measurements
(written as SI)
General Science
- acronym forInternational System
(written as SI)
Aviation
- verb to lay or to place something over the top of something else
General English
- verb to lay one picture over another so that they are both visible; to print one thing on top of another
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