/ Dictionary / Index C chain pump: Meaning and Definition of Find definitions for: chain' pump" Pronunciation: [key] a pump consisting of buckets, plates, or the like, rising upon a chain within a cylinder for raising liquids entering the cylinder at the bottom. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. chain plate chain-react Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language