| CHRYSOMELIDS | • chrysomelids n. Plural of chrysomelid. • CHRYSOMELID n. a member of the leaf-beetle family. |
| HUMOURLESSLY | • humourlessly adv. Alternative spelling of humorlessly. • HUMOURLESS adv. without humour, also HUMORLESS. |
| HYDROMASSAGE | • hydromassage n. A therapeutic massage in which bubbles of air and jets of water are pumped through a bath in which the recipient lies. • hydromassage v. (Transitive) To massage in this way. |
| HYDROMEDUSAS | • hydromedusas n. Plural of hydromedusa. • HYDROMEDUSA n. a hydrozoan in its medusoid stage, also HYDROMEDUSAN, HYDROMEDUSOID. |
| HYPERBOLISMS | • hyperbolisms n. Plural of hyperbolism. • HYPERBOLISM n. use of hyperbole. |
| HYPERSOMNIAS | • hypersomnias n. Plural of hypersomnia. • HYPERSOMNIA n. a pathological tendency to sleep excessively. |
| HYPODERMISES | • hypodermises n. Plural of hypodermis. • HYPODERMIS n. the layer of skin just below the epidermis, also HYPODERM. |
| HYPSOCHROMES | • HYPSOCHROME n. a shift to a shorter wavelength in the absorption spectrum of a compound. |
| HYPSOMETRIES | • HYPSOMETRY n. the art of measuring the heights of places on the earth's surface. |
| HYPSOMETRIST | • HYPSOMETRIST n. a practitioner of hypsometry, the measuring the heights of places on the earth's surface. |
| MASSOTHERAPY | • massotherapy n. (Massage) massage as a form of therapy. • MASSOTHERAPY n. therapy using massage. |
| PROSENCHYMAS | • PROSENCHYMA n. supporting plant tissue containing little protoplasm. |
| PSYCHOMETERS | • psychometers n. Plural of psychometer. • PSYCHOMETER n. an instrument measuring the duration and intensity of mental states. |
| SEISMOGRAPHY | • seismography n. The measurement and recording of earthquakes and other ground vibrations. • seismography n. The study of these records, seismology. • SEISMOGRAPHY n. measurement by use of the seismograph. |
| SPERMOPHYTES | • spermophytes n. Plural of spermophyte. • SPERMOPHYTE n. any member of the Spermatophyta, seed-bearing plants, also SPERMAPHYTE. |
| THROMBOLYSES | • THROMBOLYSIS n. the breaking up of a blood clot. |
| XEROPHYTISMS | • XEROPHYTISM n. being a xerophyte. |