noun Het·er·od·era \ˌhetəˈrädərə\

Definition of Heterodera

  1. :  a genus (the type of the family Heteroderidae of the superfamily Tylenchoidea) of minute nematode worms many of which attack the roots and underground stems of various cultivated plants (as sugar beets, potatoes, peas) — compare golden nematode, root-knot nematode

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Origin and Etymology of heterodera

New Latin, from heter- + -dera (from Greek derē neck) — more at der-

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a rounded knoll or a ridge of ice

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