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English definition of “phylum”

phylum

noun [C]     /ˈfai.ləm/ specialized
a main division in a taxonomic (= scientific naming and organization system) relating to animals: Members of the largest and most diverse phylum of animals (Arthropoda), have segmented bodies and an external skeleton.Species and gendersCategories and varieties
(Definition of phylum noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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