| ANTHROPOPHYTES | • anthropophytes n. Plural of anthropophyte. • ANTHROPOPHYTE n. a plant introduced incidentally in the course of cultivation. |
| ORTHOPHOSPHATE | • orthophosphate n. (Inorganic chemistry) Any salt or ester of orthophosphoric acid; an ordinary phosphate. • ORTHOPHOSPHATE n. a salt or ester of orthophosphoric acid. |
| PHOTODUPLICATE | • photoduplicate n. A photocopy. • photoduplicate v. (Transitive) To photocopy. • PHOTODUPLICATE v. to duplicate by photocopier. |
| PHOTORECEPTION | • photoreception n. (Biology) The absorption of light energy by plants and animals, and its utilization for biologically… • PHOTORECEPTION n. the perception of waves in the range of visible light. |
| PHOTORECEPTIVE | • photoreceptive adj. (Biology) Absorbing and using light, especially for sensory purposes. • PHOTORECEPTIVE adj. relating to photoreception. |
| PHOTORECEPTORS | • photoreceptors n. Plural of photoreceptor. • PHOTORECEPTOR n. a receptor for light stimuli. |
| PHOTOTELEGRAPH | • phototelegraph n. (Dated) An image transmitted by phototelegraphy. • PHOTOTELEGRAPH n. an instrument for transmitting drawings telegraphically. |
| PHOTOTHERAPIES | • phototherapies n. Plural of phototherapy. • PHOTOTHERAPY n. the treatment of disease by light. |
| PHYTOPATHOGENS | • phytopathogens n. Plural of phytopathogen. • PHYTOPATHOGEN n. an organism parasitic on a plant host. |
| PROTECTORSHIPS | • protectorships n. Plural of protectorship. • PROTECTORSHIP n. the office of protector. |
| PROTOSPATHAIRE | • PROTOSPATHAIRE n. (historical) the captain of the guards at Byzantium, also PROTOSPATAIRE, PROTOSPATHARIUS. |
| PTERIDOPHYTOUS | • PTERIDOPHYTOUS adj. of or like a pteridophyte, a fern, also PTERIDOPHYTIC. |
| PYROPHOTOMETER | • PYROPHOTOMETER n. a type of pyrometer in which the temperature of an incandescent body is determined by photometric measurement of the light it emits. |
| PYROPHOTOMETRY | • PYROPHOTOMETRY n. the measurement of the temperature of an incandescent body by photometric measurement of the light it emits. |
| TELEPHOTOGRAPH | • telephotograph n. A photograph taken with a telephoto lens. • telephotograph n. (Dated) A photograph transmitted by wire. • telephotograph v. (Transitive) To photograph with a telephoto lens. |