kilogram

noun

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”

   “Meronyms: picogram < nanogram < microgram < milligram < gram”

   “Friday’s vote has permanently redefined the kilogram and sent Le Grand K into retirement.”

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; […]”

   “Review of systems was positive for unintentional weight gain of 13.5 kilograms in the last eight months, excessive fatigue, fever, difficulty focusing, one episode of painful oral ulcer on the roof of her mouth, change in the hair texture with nonscarring alopecia, shortness of breath with exertion, and constipation.”