/ Dictionary / Index C chain lightning: Meaning and Definition of Find definitions for: chain' light"ning Pronunciation: [key] lightning that seems to move very quickly in wavy or zigzag lines. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. chain letter chain-link Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language