Kiloamperes

Part of speech: noun

Definitions

1. A unit of electric current equal to one thousand amperes, typically used in industrial applications and electrical engineering
2. A measurement indicating the flow of electric charge through a conductor, represented in thousands of amperes
3. A scale used to quantify large currents in electrical systems, often applied in contexts involving high power distribution and transmission

Etymology: The word is the plural of "kiloampere", and the unit is named after André-Marie Ampère, the French physicist whose work on electric current underpins the whole system. His surname reached English as "ampere" in the late nineteenth century, when electrical units were standardised, and it came from French "Ampère", which traces back to the Latin "imperium", meaning command or authority. The name was a surname before it was a unit, so the unit is literally a commemoration of one man. "Kilo-" is the familiar prefix from Greek "khilioi", meaning a thousand, so a kiloampere is a thousand amperes. English builds the plural in the ordinary way, adding "-s" to the end of the whole compound, which is why the form is "kiloamperes" rather than splitting the prefix from its base.