tu·bi·fex (t  b -f ks , ty-)n. pl. tubifex or tu·bi·fex·es Any of various small slender reddish freshwater worms of the genus Tubifex, often used as food for tropical aquarium fish. [New Latin Tubifex, genus name : Latin tubus, tube + Latin -fex, maker; see dh  - in Indo-European roots.] |
tubifex [ˈtjuːbɪˌfɛks]
n pl -fex, -fexes
(Life Sciences & Allied Applications / Animals) 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
[from New Latin, from Latin tubus tube + facere to make, do]
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