| LEPIDOPTERISTS | • lepidopterists n. Plural of lepidopterist. • LEPIDOPTERIST n. a specialist in lepidopterology. |
| METAPHOSPHATES | • metaphosphates n. Plural of metaphosphate. • METAPHOSPHATE n. a salt or ester of a metaphosphoric acid. |
| 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. |
| PHYTOTHERAPIES | • phytotherapies n. Plural of phytotherapy. • PHYTOTHERAPY n. the treatment of the diseases of plants. |
| PLENIPOTENTIAL | • plenipotential adj. Pertaining to a plenipotentiary; having full authority. • PLENIPOTENTIAL adj. having absolute power, also PLENIPOTENT. |
| POSTPUBESCENTS | • postpubescents n. Plural of postpubescent. • POSTPUBESCENT n. someone of an age after pubescence. |
| PRECOMPETITIVE | • precompetitive adj. Describing the early stages of the development of a commercial product, during which competitors collaborate. • PRECOMPETITIVE adj. denoting a period of industrial or commercial development during which competitors work together. |
| 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. |
| REAPPOINTMENTS | • reappointments n. Plural of reappointment. • REAPPOINTMENT n. the act of reappointing. |
| SPERMATOPHYTES | • spermatophytes n. Plural of spermatophyte. • SPERMATOPHYTE n. a seed plant. |
| STREPSIPTEROUS | • strepsipterous adj. (Zoology) Of or relating to Strepsiptera. • STREPSIPTEROUS adj. of, relating or belonging to a genus of insects parasitic in other insects. |
| SUPERCOMPETENT | • supercompetent adj. (Biology, of a cell wall) Very permeable to foreign DNA. |
| 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. |