The definition of a phylum is a major category of living organisms, or a group of genetically related language families.
(noun)See phylum in Webster's New World College Dictionary
noun pl. phyla
Origin: ModL, coined by Baron Georges (Léopold Chrétien Frédéric Dagobert) Cuvier < Gr phylon, tribe: see phylo-
See phylum in American Heritage Dictionary 4
noun pl. phy·la (-lə)
Origin:
Origin: New Latin phȳlum
Origin: , from Greek phūlon, class; see bheuə- in Indo-European roots
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