plural noun Tylen·choi·dea \ˌtīˌleŋˈkȯidēə, ˌtiˌl-, -enˈk-\

Definition of Tylenchoidea

  1. :  a superfamily of soil-dwelling or plant-parasitic nematodes (order Rhabditida) with a dorsal esophageal gland opening near the base of the buccal spear — see heterodera, tylenchidae

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Origin and Etymology of tylenchoidea

New Latin, from Tylenchus + -oidea

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a brief usually trivial fact

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