| PORPHYROPSIN | • porphyropsin n. Any of a group of purple carotenoid pigments, similar to rhodopsin, in the retinas of some fish. • PORPHYROPSIN n. a purple pigment in the retinal rods of freshwater fishes that resembles rhodopsin. |
| PORPHYROPSINS | • porphyropsins n. Plural of porphyropsin. • PORPHYROPSIN n. a purple pigment in the retinal rods of freshwater fishes that resembles rhodopsin. |
| PRECEPTORSHIP | • preceptorship n. The rank or role of preceptor. • PRECEPTORSHIP n. the office of preceptor. |
| PROSOPOGRAPHY | • prosopography n. A study of the individuals in a group of people within a specific context and their relationships. • PROSOPOGRAPHY n. a biographical sketch; a description of person. |
| PRECEPTORSHIPS | • preceptorships n. Plural of preceptorship. • PRECEPTORSHIP n. the office of preceptor. |
| PROPRIETORSHIP | • proprietorship n. The state of being a proprietor; ownership. • PROPRIETORSHIP n. the office of proprietor. |
| PROSOPOGRAPHER | • PROSOPOGRAPHER n. a writer of prosopographies, biographical sketches. |
| PYROPHOSPHORIC | • pyrophosphoric adj. Of, or relating to pyrophosphoric acid or its derivatives. • PYROPHOSPHORIC adj. as in pyrophosphoric acid, a type of acid. |
| WHIPPERSNAPPER | • whippersnapper n. (Colloquial, dated) A young and cheeky or presumptuous person. • whipper-snapper n. Alternative form of whippersnapper. • whipper␣snapper n. Alternative form of whippersnapper. |
| PROPRIETORSHIPS | • proprietorships n. Plural of proprietorship. • PROPRIETORSHIP n. the office of proprietor. |
| PROSOPOGRAPHERS | • PROSOPOGRAPHER n. a writer of prosopographies, biographical sketches. |
| PROSOPOGRAPHIES | • prosopographies n. Plural of prosopography. • PROSOPOGRAPHY n. a biographical sketch; a description of person. |
| PROTOPORPHYRINS | • protoporphyrins n. Plural of protoporphyrin. • PROTOPORPHYRIN n. metal-free porphyrin derived from blood hemin. |
| PYROPHOTOGRAPHS | • PYROPHOTOGRAPH n. a burnt-in photograph, e.g. on glass or porcelain. |
| WHIPPERSNAPPERS | • whippersnappers n. Plural of whippersnapper. • whipper-snappers n. Plural of whipper-snapper. • whipper␣snappers n. Plural of whipper snapper. |