| BATHYSPHERE | • bathysphere n. A spherical steel deep-diving chamber with perspex windows, in which persons are lowered to the depths… • BATHYSPHERE n. a submersible observation chamber. |
| CHRYSOPHANS | • CHRYSOPHAN n. an old name for chrysarobin. |
| HYDROGRAPHS | • hydrographs n. Plural of hydrograph. • HYDROGRAPH n. a graph of variation of stream flow over time. |
| HYDROPHANES | • hydrophanes n. Plural of hydrophane. • HYDROPHANE n. a semitranslucent variety of opal that becomes translucent or transparent on immersion in water. |
| HYETOGRAPHS | • hyetographs n. Plural of hyetograph. • HYETOGRAPH n. an instrument for recording rainfall. |
| HYGROGRAPHS | • hygrographs n. Plural of hygrograph. • HYGROGRAPH n. an instrument for recording variations in atmospheric humidity. |
| HYPAETHRONS | • HYPAETHRON n. an open court. |
| HYPHAERESES | Sorry, definition not available. |
| HYPHAERESIS | Sorry, definition not available. |
| HYPSOGRAPHY | • hypsography n. (Sciences) The data present in contour lines; measurement of altitude or depth versus area. • HYPSOGRAPHY n. the branch of geography dealing with the measurement and mapping of heights above sea level. |
| PHYLARCHIES | • phylarchies n. Plural of phylarchy. • PHYLARCHY n. the office of a phylarch; government of a class or tribe. |
| PSYCHOGRAPH | • psychograph n. One of various graphical representations of a cognitive or psychological profile. • psychograph n. (Spiritualism) A photographic image having a supposed supernatural or spiritual origin. • psychograph n. (Spiritualism) Any of various devices used for automatic writing. |
| RHINOPHYMAS | • rhinophymas n. Plural of rhinophyma. • RHINOPHYMA n. acne of the nose. |
| TACHYGRAPHS | • tachygraphs n. Plural of tachygraph. • TACHYGRAPH n. a shorthand writer, also TACHYGRAPHER, TACHYGRAPHIST. |