/ Dictionary / Index T telson: Meaning and Definition of Find definitions for: tel•son Pronunciation: (tel'sun), [key] — n. the last segment, or an appendage of the last segment, of certain arthropods, as the middle flipper of a lobster's tail. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. telpherage telsontail Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language