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| the usual major subdivision of a family or subfamily in the classification of organisms, usually consisting of more than one species |
| the science dealing with the description, identification, naming, and classification of organisms |
subphylum sub·phy·lum (sŭb'fī'ləm)
n. pl. sub·phy·la (-lə)
A taxonomic category ranking between a phylum and a class.
| subphylum (sŭb'fī'ləm) Pronunciation Key
Plural subphyla A subdivision of a phylum of organisms. A subphylum contains one or more classes. |