A person who assesses the weight or volume of quantities of coal; specifically an official of the Corporation of the City of London appointed to superintend this process for coal brought into the London market.
Origin
Middle English. From coal + meter.
Definition of coal meter in US English:
coal meter
nounˈkəʊl ˌmiːtə
A person who assesses the weight or volume of quantities of coal; specifically an official of the Corporation of the City of London appointed to superintend this process for coal brought into the London market.