| GEOMORPHOGENIST | • GEOMORPHOGENIST n. a student of geomorphogeny, the study of the origins of land forms. |
| GEOMORPHOLOGIST | • geomorphologist n. A geologist whose speciality is geomorphology. • GEOMORPHOLOGIST n. one who studies geomorphology. |
| PHOTOENGRAVING | • photoengraving n. (Uncountable) A process of transferring a photographic image onto a plate which is then etched and printed. • photoengraving n. (Countable) A plate or reproduction made using this process. • photoengraving v. Present participle of photoengrave. |
| PHOTOENGRAVINGS | • photoengravings n. Plural of photoengraving. • PHOTOENGRAVING n. any process of engraving by aid of photography, esp. from relief plates. |
| PHYTOGEOGRAPHER | • phytogeographer n. A person involved in phytogeography. • PHYTOGEOGRAPHER n. a student of phytogeography. |
| PHYTOGEOGRAPHIC | • phytogeographic adj. Phytogeographical. • PHYTOGEOGRAPHIC adj. relating to phytogeography. |
| PHYTOGEOGRAPHY | • phytogeography n. (Biology) The science that studies the geographical distribution of plants; geobotany. • PHYTOGEOGRAPHY n. the geography of plant distribution. |
| PROGESTOGEN | • progestogen n. (Biochemistry, steroids) Alternative spelling of progestagen. • PROGESTOGEN n. any of a range of hormones of the progesterone type. |
| PROGESTOGENIC | • progestogenic adj. Relating to, or using a progestogen. • PROGESTOGENIC adj. relating to progestogen. |
| PROGESTOGENS | • progestogens n. Plural of progestogen. • PROGESTOGEN n. any of a range of hormones of the progesterone type. |
| PROTOLANGUAGE | • protolanguage n. Alternative form of proto-language. • proto-language n. (Linguistics) A language which is reconstructed by examining similarities in existing languages to try… • proto-language n. (Linguistics) The early utterances produced by an infant before it acquires true language. |
| PROTOLANGUAGES | • protolanguages n. Plural of protolanguage. • proto-languages n. Plural of proto-language. • PROTOLANGUAGE n. an assumed or recorded ancestral language. |
| REPHOTOGRAPHING | • rephotographing v. Present participle of rephotograph. • REPHOTOGRAPH v. to photograph again. |
| ROENTGENOGRAPH | • roentgenograph n. A radiograph. • roentgenograph v. To radiograph. • ROENTGENOGRAPH n. an X-ray photograph, also RONTGENOGRAPH. |
| ROENTGENOGRAPHS | • roentgenographs n. Plural of roentgenograph. • roentgenographs v. Third-person singular simple present indicative form of roentgenograph. • ROENTGENOGRAPH n. an X-ray photograph, also RONTGENOGRAPH. |
| ROENTGENOGRAPHY | • roentgenography n. Radiography; The production of roentgenograms. • ROENTGENOGRAPHY n. radiography. |
| RONTGENOGRAPH | • RONTGENOGRAPH n. an apparatus for taking X-ray photographs, also ROENTGENOGRAPH. |
| RONTGENOGRAPHS | • RONTGENOGRAPH n. an apparatus for taking X-ray photographs, also ROENTGENOGRAPH. |
| RONTGENOGRAPHY | • RONTGENOGRAPHY n. photography by X-rays. |