armlet. n. 1. a small arm, as of a lake, the sea, etc. 2. (Clothing & Fashion) a band or bracelet worn round the arm for ornament, identification, etc.rmlet. n. 1. a small arm, as of a lake, the sea, etc. 2. (Clothing & Fashion) a band or bracelet worn round the arm for ornament, identification, etc.
kilo- a combining form used in the names of units of measure equal to one thousand of a given base unit: kiloliter; kilowatt. [< French, representing Greek chilioi a thousand]
The definition of the kilogram is undergoing a fundamental changeâthe current definition defines the kilogram as being the mass of the international prototype kilogram which is an artefact, not a constant of nature while the new definition relates it to the equivalent energy of a photon via the Planck constant.