| PHYLACTIC | • phylactic adj. (Medicine) That protects (against disease). • phylactic adj. Relating to phylaxis. • phylactic n. A protection against disease. |
| PHYLARCHS | • phylarchs n. Plural of phylarch. • PHYLARCH n. an ancient Greek commander of a tribe. |
| PHYLARCHY | • phylarchy n. Government by a class or tribe. • PHYLARCHY n. the office of a phylarch; government of a class or tribe. |
| PHYLETICS | • phyletics n. Phylogeny. • PHYLETICS n. the study of the evolution of species. |
| PHYLLITES | • phyllites n. Plural of phyllite. • PHYLLITE n. a foliated rock, a kind of metamorphosed mudstone. |
| PHYLLITIC | • phyllitic adj. Of or relating to phyllite. • PHYLLITIC adj. of or like phyllite, a metamorphosed mudstone with a silky sheen. |
| PHYLLODES | • phyllodes n. Plural of phyllode. • PHYLLODE n. a flattened petiole that serves as a leaf. |
| PHYLLODIA | • phyllodia n. Plural of phyllodium. • PHYLLODIUM n. a petiole dilated into the form of a blade, and usually with vertical edges, as in the Australian acacias. |
| PHYLLOIDS | • PHYLLOID n. a leaflike assimilatory organ in brown algae. |
| PHYLLOMES | • phyllomes n. Plural of phyllome. • PHYLLOME n. a leaf of a plant. |
| PHYLLOMIC | • phyllomic adj. Relating to a phyllome. • PHYLLOMIC adj. of or like a phyllome, a leaf or homologue of a leaf. |
| PHYLLOPOD | • phyllopod n. Any of several branchiopod crustaceans whose appendages resemble leaves. • PHYLLOPOD n. one of an order of crustaceans whose swimming and respiratory appendages resemble leaves. |
| PHYLOGENY | • phylogeny n. (Systematics) The evolutionary history of groups of organisms, such as species or clades. • phylogeny n. (Systematics, informal) A phylogenetic diagram. • phylogeny n. The historical development of a human social or racial group. |