Definition of tubifex worm
: any of a genus (Tubifex) of slender reddish tubificid worms that live in tubes in fresh or brackish water, are widely used as food for aquarium fish, and serve as a host for the protozoan causing whirling disease in fish —called also tubifex
Origin and Etymology of tubifex worm
New Latin Tubific-, Tubifex, from Latin tubus tube + facere to make — more at do
First Known Use: 1948
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