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order

noun [C] (BIOLOGY)
 
 
/ˈɔː.dər/ US  /ˈɔːr.dɚ/ specialized

Definition

(used in the classification of plants and animals) a group of related plants or animals: An order is below a class and above a family.Species and gendersCategories and varieties
(Definition of order noun (BIOLOGY) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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