noun
or gag·er ˈgājə(r)
( -s )
Etymology: Middle English, from Anglo-French gaugeour, from Old North French gaugier + Anglo-French -our -or
: one that gauges: as
a. chiefly Britain : an exciseman or customs officer who checks, measures, and sometimes assesses the levy on dutiable bulk goods (as liquors)
b. : a worker who inspects and checks the dimensions of small parts in a machine shop
c. : one that gauges the quantity and temperature of oil in storage tanks and controls the flow of oil into pipelines