| CHIMNEYBOARD | • CHIMNEYBOARD n. a board blocking up a fireplace. |
| DYNAMOGRAPHS | • dynamographs n. Plural of dynamograph. • DYNAMOGRAPH n. an instrument for recording mechanical forces. |
| DYSMENORRHEA | • dysmenorrhea n. (Medicine) Painful menstruation (menstrual#Adjective pain), viewed as a symptom#Noun in any of various disorders. • dysmenorrhea n. (Medicine) Painful menstruation (menstrual#Adjective pain), viewed as a disorder#Noun in its own right… • DYSMENORRHEA n. painful menstruation, also DYSMENORRHOEA. |
| HAEMODYNAMIC | • haemodynamic adj. (British spelling) Alternative spelling of hemodynamic. • HAEMODYNAMIC adj. of or relating to blood circulation, also HEMODYNAMIC. |
| HEMODYNAMICS | • hemodynamics n. (Medicine) The circulation and movement of blood in the body, and the forces involved therein. • HEMODYNAMICS n. a branch of physiology that deals with the circulation of the blood, also HAEMODYNAMICS. |
| HONEYMONTHED | • HONEYMONTH v. (obsolete) to spend one's honeymoon, also HONEYMOON. |
| HYDRODYNAMIC | • hydrodynamic adj. (Physics) Of, or relating to the science of hydrodynamics. • hydrodynamic adj. Operated by the force of water in motion. • HYDRODYNAMIC adj. of, relating to, or involving principles of hydrodynamics, also HYDRODYNAMICAL. |
| HYDROFORMING | • hydroforming n. (Engineering) A cost-effective way of shaping malleable metals into lightweight, stiff pieces by means… • hydroforming n. (Organic chemistry) The reaction of petroleum with hydrogen. • HYDROFORMING n. the catalytic reforming of petroleum to increase the proportion of aromatic and branched-chain hydrocarbons. |
| HYDROMANCERS | • hydromancers n. Plural of hydromancer. • HYDROMANCER n. one who practises hydromancy. |
| HYDROMANCIES | • hydromancies n. Plural of hydromancy. • HYDROMANCY n. divination by the appearance or motion of liquids (as water). |
| HYDROMEDUSAN | • hydromedusan adj. (Zoology) Relating to the hydromedusas. • HYDROMEDUSAN n. a hydromedusa, also HYDROMEDUSA, HYDROMEDUSOID. |
| HYDROXONIUMS | • hydroxoniums n. Plural of hydroxonium. • HYDROXONIUM n. the obsolete name for the cation H3O+ derived from protonation of water. |
| MONOHYDRATED | • monohydrated adj. Hydrated with a single molecule of water. • MONOHYDRATED adj. like a monohydrate. |
| MONOHYDRATES | • monohydrates n. Plural of monohydrate. • MONOHYDRATE n. a hydrate containing one molecule of water per molecule of the compound. |
| MONOHYDROGEN | • monohydrogen n. (Chemistry, in combination) A single hydrogen atom in a compound. • MONOHYDROGEN adj. designating compounds containing one hydrogen atom or ion for each combining radical or ion, e.g. disodium monohydrogen orthophosphate. |
| MONOPHYODONT | • monophyodont adj. (Biology) Having only one set of teeth. • monophyodont n. (Biology) Any organism with only one set of teeth. • MONOPHYODONT n. an animal with only one set of teeth. |
| PHOTODYNAMIC | • photodynamic adj. Of, relating to, or caused by the energy or momentum of light or other electromagnetic radiations. • photodynamic adj. Of, or relating to photodynamics. • PHOTODYNAMIC adj. of, relating to, or having the property of intensifying or inducing a toxic reaction to light (as in the destruction of cancer cells stained with a light-sensitive dye) in a living system. |
| SYNECDOCHISM | • SYNECDOCHISM n. the use of synecdoche; the use of a part for the whole in sympathetic magic. |
| UNHANDSOMELY | • unhandsomely adv. In an unhandsome manner. • UNHANDSOME adv. not handsome. |