| EPIPHYTOLOGIES | • EPIPHYTOLOGY n. the study of epiphytes. |
| EPISTOLOGRAPHY | • epistolography n. The art or practice of writing epistles. • EPISTOLOGRAPHY n. letter-writing. |
| OPISTHOGRAPHY | • opisthography n. A writing upon the back of anything, as upon the back of a sheet already written upon on one side. • OPISTHOGRAPHY n. inscribing on the back as well as the front. |
| PAPYROLOGIST | • papyrologist n. A student of papyrology, the study of ancient writings on papyrus. • PAPYROLOGIST n. a student of papyrology. |
| PAPYROLOGISTS | • papyrologists n. Plural of papyrologist. • PAPYROLOGIST n. a student of papyrology. |
| PATHOPHYSIOLOGY | • pathophysiology n. (Pathology) The physiological processes associated with disease or injury. • PATHOPHYSIOLOGY n. the physiology of abnormal states. |
| PHOSPHORYLATING | • phosphorylating v. Present participle of phosphorylate. • phosphorylating adj. That phosphorylates. • PHOSPHORYLATE v. to cause (an organic compound) to take up or combine with phosphoric acid or a phosphorus-containing group. |
| PHOTOCOPYINGS | • photocopyings n. Plural of photocopying. • PHOTOCOPYING n. the act of making a photocopy. |
| PHOTOGLYPHIES | • PHOTOGLYPHY n. photography by photoglyph. |
| PHOTOGLYPHS | • PHOTOGLYPH n. photographic engraving. |
| PHYSIOPATHOLOGY | • physiopathology n. Pathophysiology: the physiological processes associated with disease or injury, or the study thereof. • PHYSIOPATHOLOGY n. a branch of biology or medicine that combines physiology and pathology esp. in the study of altered bodily function in disease. |
| PHYTOPATHOGENS | • phytopathogens n. Plural of phytopathogen. • PHYTOPATHOGEN n. an organism parasitic on a plant host. |
| PHYTOPHAGOUS | • phytophagous adj. (Zoology) Feeding on plants, herbivorous. • PHYTOPHAGOUS adj. feeding on plants, also PHYTOPHAGIC. |
| PORPHYROGENITES | • porphyrogenites n. Plural of porphyrogenite. • PORPHYROGENITE n. a Byzantine emperor's son, born in the purple. |
| PSYCHOPATHOLOGY | • psychopathology n. (Medicine, pathology) The study of the origin, development, diagnosis and treatment of mental and behavioural… • psychopathology n. (Countable) A mental or behavioral disorder. • PSYCHOPATHOLOGY n. the study of mental illness. |
| PYROPHOTOGRAPHS | • PYROPHOTOGRAPH n. a burnt-in photograph, e.g. on glass or porcelain. |