kilograms

Noun

kilogram (plural kilograms)

1. 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
   • Holonyms: megagram < gigagram
2. (proscribed) The unit of weight such that a one-kilogram mass is also a one-kilogram weight.
   • A nan (bread) costs 25 Afghanis : a kilogram of beef 800 Afghanis and mutton of the same weight for 1200 Afghanis; […]1990, Central Asia, numbers 26-27, page 137