Definition of ARMLET. 1. : a band (as of cloth or metal) worn around the upper arm.2. : a small arm (as of the sea).See armlet defined for kids. ADVERTISEMENT.efinition of ARMLET. 1. : a band (as of cloth or metal) worn around the upper arm. 2. : a small arm (as of the sea). See armlet defined for kids.
Definition of kilogram. 1  1 : the base unit of mass in the International System of Units that is equal to the mass of a prototype agreed upon by international convention and that is nearly equal to the mass of 1000 cubic centimeters of water at the temperature of its maximum density â see metric system table.
In the International System of Units, the base unit of mass; the mass of a specific cylinder of platinum-iridium alloy kept at the International Bureau of Weights and Measures in France. Symbol: kg. kilogram (Noun). Hence, the unit of weight such that one-kilogram mass is also a one-kilogram weight.ilogram. The kilogram or kilogramme, is the base unit of mass in the International System of Units and is defined as being equal to the mass of the International Prototype of the Kilogram.