Definition of phylum
plural phyla
play
\ˈfī-lə\
1 a
: a direct line of descent within a group
b
: a group that constitutes or has the unity of a phylum;
specifically
: a primary category in biological taxonomy especially of animals that ranks above the class and below the kingdom — compare division 10
2
: a group of languages related more remotely than those of a family or stock
