/ Dictionary / Index T tubeworm: Meaning and Definition of Find definitions for: tube•worm Pronunciation: (tb'wûrm", tyb'-), [key] — n. Zool. any of various marine worms that produce and inhabit a tube, some being adapted to a hydrothermal vent environment. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tube top tubi- Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language