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Meaning of tubifex

tu•bi•fex

Pronunciation: (t'bu-feks", ty'-), [key]
— pl. -fex•es, -fex.
  1. any common, bottom-dwelling worm of the genus Tubifex, often used as food for aquarium fish. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.