| DIAPHOTOTROPIC | • DIAPHOTOTROPIC adj. diaheliotropic, turning transversely to the light. |
| DIPHTHERITISES | • DIPHTHERITIS n. diphtheria. |
| HYDROTHERAPIST | • hydrotherapist n. A therapist who performs hydrotherapy. • HYDROTHERAPIST n. a practitioner of hydrotherapy. |
| HYDROXYAPATITE | • hydroxyapatite n. A basic calcium phosphate mineral that is the principal inorganic constituent of bone and teeth. • HYDROXYAPATITE n. a complex phosphate of calcium that occurs as a mineral and is the chief structural element of vertebrate bone. |
| HYPEREUTECTOID | • hypereutectoid adj. Containing the minor component in excess of that contained in the eutectoid. • hypereutectoid n. A hypereutectic alloy. • HYPEREUTECTOID adj. containing the minor component in excess of that contained in the eutectoid. |
| PHOTOCONDUCTOR | • photoconductor n. A material, or a device, that exhibits or utilizes photoconductivity. • PHOTOCONDUCTOR n. a photoconductive substance. |
| PHOTODETECTORS | • photodetectors n. Plural of photodetector. • PHOTODETECTOR n. any of various devices for detecting and measuring the intensity of radiant energy through photoelectric action. |
| PHOTOELECTRODE | • photoelectrode n. (Physics) Either electrode of a photoelectric cell. • PHOTOELECTRODE n. an electrode which can exhibit photoelectricity. |
| PHOTOREDUCTION | • photoreduction n. (Physics, chemistry) The addition of an electron to a photoexcited species. • photoreduction n. (Chemistry) Any reduction reaction that takes place in the presence of light. • PHOTOREDUCTION n. chemical reduction under the influence of radiant energy, as light. |
| PROSTHODONTIAS | • PROSTHODONTIA n. the provision of false teeth, also PROSTHODONTICS. |
| PROSTHODONTICS | • prosthodontics n. Prosthetic dentistry: a specialty of dentistry concerned with the restoration or replacement of damaged… • PROSTHODONTICS n. the provision of false teeth, also PROSTHODONTIA. |
| PROSTHODONTIST | • prosthodontist n. One who specializes in prosthodontics. • PROSTHODONTIST n. a specialist in prosthodontics. |
| PROTOCHORDATES | • protochordates n. Plural of protochordate. • PROTOCHORDATE n. a member of the Protochordata. |
| PTERIDOPHILIST | • PTERIDOPHILIST n. a fern-lover. |
| PTERIDOPHYTOUS | • PTERIDOPHYTOUS adj. of or like a pteridophyte, a fern, also PTERIDOPHYTIC. |
| RADIOTHERAPIST | • radiotherapist n. A therapist who specialises in radiotherapy. • RADIOTHERAPIST n. one who practises radiotherapy. |