門,語系
Phylum \Phy"lum\, n. (Biol.) A series of animals or plants genetically connected. Phylum \Phy"lum\, n.; pl. {Phyla}. [NL. See {Phylon}.] (Zo["o]l.) One of the larger divisions of the animal kingdom; a branch; a grand division.
phylum n 1: (linguistics) a large group of languages that are historically related 2: (biology) the major taxonomic group of animals and plants; contains classes [also: {phyla} (pl)]