plural of pump-jet

plural of pumping lemma

plural of pumping lemma

(mining) The forepump in the pit of a mine.

A kind of vacuum pump in which vacuum is produced by a stream of mercury drops running down a very narrow tube

plural of pump trolley

A light railroad car propelled by a hand-operated pumping mechanism; a handcar.

Alternative form of pump room

(sometimes capitalized) A room housing a pump, especially a room or structure at a spa where mineral water is drawn from a spring and consumed, formerly often serving as a venue for polite socializing and conversation.

present participle of pump out