| HOLOPHYTISMS | • HOLOPHYTISM n. the property of being holophytic, obtaining food by photosynthesis. |
| HYPNOLOGISTS | • hypnologists n. Plural of hypnologist. • HYPNOLOGIST n. one who studies sleep. |
| HYPOCOTYLOUS | • HYPOCOTYLOUS adj. of or like a hypocotyl, the stem of a plant below the cotyledons. |
| HYPOPLASTRON | • hypoplastron n. The third lateral plate in the plastron of turtles. • HYPOPLASTRON n. the plate behind the hyoplastron in a turtle's plastron. |
| LYMPHOMATOUS | • lymphomatous adj. Relating to lymphoma. • LYMPHOMATOUS adj. of or like a lymphoma. |
| PHOTOLYSABLE | • photolysable adj. Capable of photolysis. • PHOTOLYSABLE adj. capable of being photolysed, also PHOTOLYZABLE. |
| PHYCOLOGISTS | • phycologists n. Plural of phycologist. • PHYCOLOGIST n. a student of phycology, the study of algae and seaweeds. |
| PHYSIOLOGIST | • physiologist n. A person who studies or specializes in physiology. • PHYSIOLOGIST n. a student of physiology. |
| PHYTOLOGISTS | • phytologists n. Plural of phytologist. • PHYTOLOGIST n. a botanist. |
| PHYTOSTEROLS | • phytosterols n. Plural of phytosterol. • PHYTOSTEROL n. any of various sterols derived from plants. |
| POLYCHAETOUS | • polychaetous adj. Relating to polychaetes. • POLYCHAETOUS adj. of or like a polychaete, a type of aquatic worm, also POLYCHETOUS. |
| POLYHISTORIC | • polyhistoric adj. Synonym of polyhistorical. • POLYHISTORIC adj. relating to polyhistory, great and varied learning. |
| POLYPHONISTS | • polyphonists n. Plural of polyphonist. • POLYPHONIST n. a contrapuntist, one who writes counterpoint. |
| POLYSTICHOUS | • polystichous adj. (Botany) arranged in several rows or series. • POLYSTICHOUS adj. arranged in many rows. |
| POSTHUMOUSLY | • posthumously adv. After death. • post-humously adv. Alternative spelling of posthumously. • POSTHUMOUS adv. taking place after death. |
| PSYCHOLOGIST | • psychologist n. An expert in the field of psychology. • PSYCHOLOGIST n. one who practises psychology. |
| TYPHLOLOGIES | • TYPHLOLOGY n. the study of blindness and the blind. |
| XYLOPHONISTS | • xylophonists n. Plural of xylophonist. • XYLOPHONIST n. one who plays the xylophone. |