pig-iron

n [U] impure form of iron from a smelting furnace 生铁.

piece de resistance, piece together, piece up, piece-work, piecemeal, piecrust, pied, pied-a-terre, pier, pierce, piercing, piercingly, pierrot, pieta, piety, piezo-electric, piffle, piffling, pig, pig iron, pigeon, pigeon-breasted, pigeon-hole, pigeon-toed, pigeonhole, piggery, piggish, piggishly, piggishness, piggy, pigheaded, pigheadedly, pigheadedness, piglet, pigment, pigmentation, pigmy, pigskin, pigsty, pigswill,