plural noun
Trom·bi·doi·dea | \ˌträmbəˈdȯidēə\

Definition of Trombidoidea 

in some especially former classifications

: a superfamily of mites that includes the harvest mites, the red spiders, and others of minor importance

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History and Etymology for Trombidoidea

New Latin, from Trombidium + -oidea

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a state of commotion or excitement

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