ˈtrōn noun
also tron ˈträn
( -s )
Etymology: Anglo-French trone, from Old French, from Latin trutina balance, scales, from Greek trytanē; akin to Greek tryma hole, tetrainein to pierce; from the opening in which the tongue of the scale moves — more at throw
chiefly Scotland : one of various weighing machines ; specifically : one for heavy wares having two horizontal bars crossing each other and beaked at the extremities