smokestack: a large tall chimney through which combustion gases and smoke can be evacuated
chimney: a vertical flue that provides a path through which smoke from a fire is carried away through the wall or roof of a building
endotracheal tube: a catheter that is inserted into the trachea through the mouth or nose in order to maintain an open air passage or to deliver oxygen or to permit the suctioning of mucus or to prevent aspiration of the stomach contents