Defn: The chief of a phyle, or tribe.

PHYLARCHY
Phy"larch*y, n. Etym: [Gr.

Defn: The office of a phylarch; government of a class or tribe.

PHYLE
Phy"le, n.; pl. Phylæ. Etym: [NL., fr. Gr.

Defn: A local division of the people in ancient Athens; a clan; a tribe.

PHYLLITE Phyl"lite, n. Etym: [See Phylo-.] (Min.) (a) A mineral related to ottrelite. (b) Clay slate; argillaceous schist.

PHYLLO-
Phyl"lo-.

Defn: A combining form from Gr. a leaf; as, phyllopod, phyllotaxy.

PHYLLOBRANCHIA Phyl`lo*bran"chi*a, n.; pl. Phyllobranciæ. Etym: [NL. See Phyllo-, and Branchia.] (Zoöl.)

Defn: A crustacean gill composed of lamellæ.