one who mines; a digger for metals, etc.; one engaged in the business of getting ore, coal, or precious stones, out of the earth; one who digs military mines; as, armies have sappers and miners.-any of numerous insects which, in the larval state, excavate galleries in the parenchyma of leaves. they are mostly minute moths and dipterous flies.-the chattering, or garrulous, honey eater of australia (myzantha garrula).