kilogram
/ˈkɪləɡɹæm/ noun
Forms kilograms kilogramme chiliogramme chilogramme
- noun In the International System of Units, the base unit of mass; conceived of as the mass of one litre of water, but now defined by taking the fixed numerical value of the Planck constant h to be 6.626 070 15 × 10⁻³⁴ when expressed in units of kg⋅m²⋅s⁻¹. Symbol: kg
- noun (proscribed) The unit of weight such that a one-kilogram mass is also a one-kilogram weight.
Synonyms
Etymology
Borrowed from French kilogramme. By surface analysis, kilo- + gram.
Webster’s 1913
- noun A measure of weight, being a thousand grams, equal to 2.2046 pounds avoirdupois (15,432.34 grains). It is equal to the weight of a cubic decimeter of distilled water at the temperature of maximum density, or 39º Fahrenheit.
Etymology [F. kilogramme; pref. kilo- (fr. Gr. chi`lioi a thousand ) + gramme. See 3d Gram.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “kilogram”, CC BY-SA 4.0. Details