| CHRYSOPHAN | • chrysophan n. Archaic form of chrysophane. • CHRYSOPHAN n. an old name for chrysarobin. |
| ECHOGRAPHY | • echography n. (Medicine) The use of ultrasound as a diagnostic aid. • ECHOGRAPHY n. medical examination of the internal structures of the body by means of ultrasound. |
| HOLOGRAPHY | • holography n. (Physics) a technique for recording, and then reconstructing, the amplitude and phase distributions… • HOLOGRAPHY n. the technique or process of making or using holograms. |
| HOMOGRAPHY | • homography n. The state or quality of being written in the same way, especially when spelled with the same letters… • homography n. (Geometry) An isomorphism between projective spaces that maps straight lines to straight lines. • HOMOGRAPHY n. a type of transformation that maps straight lines onto another plane. |
| HOROGRAPHY | • horography n. (Historical) local history (in Ancient Greece) that involved the description of events. • horography n. The art of constructing dials or instruments for indicating the hours. • HOROGRAPHY n. the art of constructing sundials or clocks. |
| HYDROGRAPH | • hydrograph n. A graph of flow past a point in a river versus time. • hydrograph n. A graph of water table versus time. • HYDROGRAPH n. a graph of variation of stream flow over time. |
| HYDROPATHS | • hydropaths n. Plural of hydropath. • HYDROPATH n. a practitioner of hydropathy, the study of treating diseases with water. |
| HYDROPATHY | • hydropathy n. The therapeutic use of water, either internally or externally. • HYDROPATHY n. the study of treating diseases with water. |
| HYDROPHANE | • hydrophane n. (Mineralogy) A semitranslucent variety of opal that becomes translucent or transparent on immersion in water. • HYDROPHANE n. a semitranslucent variety of opal that becomes translucent or transparent on immersion in water. |
| HYETOGRAPH | • hyetograph n. A graphical representation of rainfall over time. • HYETOGRAPH n. an instrument for recording rainfall. |
| HYGROGRAPH | • hygrograph n. Any of several forms of automated hygrometer that record humidity. • HYGROGRAPH n. an instrument for recording variations in atmospheric humidity. |
| HYPAETHRAL | • hypaethral adj. Open-air, outdoor, exposed to the sky. • hypæthral adj. Alternative spelling of hypaethral. • HYPAETHRAL adj. roofless; open to the sky (usually intentionally, so as to see the stars), also HUPAITHRIC, HYPETHRAL, UPAITHRIC. |
| HYPAETHRON | • hypaethron n. An open court. • HYPAETHRON n. an open court. |
| RHINOPHYMA | • rhinophyma n. (Medicine) The condition of having a large, bulbous, ruddy nose caused by granulomatous infiltration… • RHINOPHYMA n. acne of the nose. |
| TACHYGRAPH | • tachygraph n. An example of tachygraphy or shorthand, especially an ancient manuscript. • TACHYGRAPH n. a shorthand writer, also TACHYGRAPHER, TACHYGRAPHIST. |