| APPRENTICESHIPS | • apprenticeships n. Plural of apprenticeship. • APPRENTICESHIP n. the state of being an apprentice. |
| HYPOPHOSPHOROUS | • hypophosphorous adj. (Chemistry) Of or pertaining to hypophosphorous acid or its derivatives. • HYPOPHOSPHOROUS adj. as in hypophosphorous acid, a monobasic acid and a reducing agent. |
| PHOSPHOPROTEINS | • phosphoproteins n. Plural of phosphoprotein. • PHOSPHOPROTEIN n. any of various proteins, such as casein, that contain combined phosphoric acid. |
| PHOSPHOROSCOPES | • phosphoroscopes n. Plural of phosphoroscope. • PHOSPHOROSCOPE n. an instrument for measuring the duration of phosphorescence after the source of radiation causing it has been removed. |
| PHOTOTOPOGRAPHY | • phototopography n. The surveying and mapping of a terrain based solely on terrestrial photographs. • PHOTOTOPOGRAPHY n. the preparation of topographic maps from photographs. |
| PHOTOTYPOGRAPHY | • phototypography n. A photomechanical method of printing made to resemble traditional metal typography. • PHOTOTYPOGRAPHY n. any printing process involving the use of photography. |
| 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. |
| PSEUDEPIGRAPHIC | • pseudepigraphic adj. Of or relating to pseudepigraphy. • PSEUDEPIGRAPHIC adj. relating to pseudepigrapha, spurious writings. |
| PSEUDEPIGRAPHON | • pseudepigraphon n. Singular of pseudepigrapha. • PSEUDEPIGRAPHON n. a book ascribed to Old Testament characters, but not judged genuine by scholars. |
| PYROPHOTOGRAPHS | • PYROPHOTOGRAPH n. a burnt-in photograph, e.g. on glass or porcelain. |
| PYROPHOTOGRAPHY | • pyrophotography n. (Photography) Any photographic process involving the use of heat to fix the picture. • PYROPHOTOGRAPHY n. the production of pyrophotographs. |
| SUPERPHOSPHATES | • superphosphates n. Plural of superphosphate. • SUPERPHOSPHATE n. acid phosphate. |
| WHIPPERSNAPPERS | • whippersnappers n. Plural of whippersnapper. • whipper-snappers n. Plural of whipper-snapper. • whipper␣snappers n. Plural of whipper snapper. |