phylum /phy·lum/ (fi´lum) pl. phy´la [L.] a primary division of a kingdom, composed of a group of related classes; in the taxonomy of plants and fungi, the term division is used instead. Mycologists sometimes use the word to denote any important group of organisms.
phylum
phy·lum (f  l m)n. pl. phy·la (-l ) A taxonomic category that is a primary division of a kingdom and ranks above a class in size. |
phylum
[fī′ləm]
Etymology: Gk, phylon, tribe
a major subdivision of a kingdom of organisms, representing one or more classes.
phylum
pl. phyla [L., Gr.] a primary division of the plant or animal kingdom, including organisms that are assumed to have a common ancestry.
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