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tubifex

[too-buh-feks, tyoo-] /ˈtu bəˌfɛks, ˈtyu-/
noun, plural tubifexes (especially collectively) tubifex.
1.
any common, bottom-dwelling worm of the genus Tubifex, often used as food for aquarium fish.
Also called red worm.
Origin
< Neo-Latin (1816); see tubi-, -fex
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for tubifex

tubifex

/ˈtjuːbɪˌfɛks/
noun (pl) -fex, -fexes
1.
any small reddish freshwater oligochaete worm of the genus Tubifex; it characteristically lives in a tube in sand and is used as food for aquarium fish
Word Origin
C19: from New Latin, from Latin tubus tube + facere to make, do
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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