| ANTIHYDROGEN | • antihydrogen n. (Physics, uncountable) The antimatter equivalent of hydrogen, consisting of an antiproton and an positron… • antihydrogen n. (Physics, countable) An atom of the antimatter equivalent of hydrogen. • ANTIHYDROGEN n. an antimatter form of hydrogen. |
| CHIMNEYBOARD | • CHIMNEYBOARD n. a board blocking up a fireplace. |
| DEHYDRATIONS | • dehydrations n. Plural of dehydration. • DEHYDRATION n. loss or withdrawal of moisture. |
| HETERODYNING | • heterodyning v. Present participle of heterodyne. • HETERODYNE v. to change the frequency of (a signal) by imposing on a continuous wave another of slightly different length to produce beats. |
| HYDROGENISED | • hydrogenised v. Simple past tense and past participle of hydrogenise. • HYDROGENISE v. to hydrogenate, also HYDROGENIZE. |
| HYDROGENISES | • hydrogenises v. Third-person singular simple present indicative form of hydrogenise. • HYDROGENISE v. to hydrogenate, also HYDROGENIZE. |
| HYDROGENIZED | • hydrogenized v. Simple past tense and past participle of hydrogenize. • HYDROGENIZE v. to hydrogenate, also HYDROGENISE. |
| HYDROGENIZES | • hydrogenizes v. Third-person singular simple present indicative form of hydrogenize. • HYDROGENIZE v. to hydrogenate, also HYDROGENISE. |
| HYDROKINETIC | • hydrokinetic adj. Of or pertaining to hydrokinetics. • hydrokinetic adj. Of or pertaining to the kinetic energy of moving fluids. • HYDROKINETIC adj. of or relating to the motions of fluids or the forces which produce or affect such motions, also HYDROKINETICAL. |
| HYDROMANCIES | • hydromancies n. Plural of hydromancy. • HYDROMANCY n. divination by the appearance or motion of liquids (as water). |
| HYDROQUINONE | • hydroquinone n. (Organic chemistry) The diphenol para-dihydroxy benzene, used as a mild reducing agent in photographic… • HYDROQUINONE n. another name for quinol. |
| HYDROXYZINES | • hydroxyzines n. Plural of hydroxyzine. • HYDROXYZINE n. a compound used as an antihistamine and tranquilizer. |
| HYDROZINCITE | • hydrozincite n. (Mineralogy) A white carbonate mineral with the chemical formula Zn5(CO3)2(OH)6. • HYDROZINCITE n. a monoclinic basic carbonate of zinc that is a secondary mineral occurring as light-coloured crusts on zinc deposits. |
| HYRACOIDEANS | • HYRACOIDEAN n. any member of a genus of mammals including the daman and the dassie or hyrax, also HYRACOID. |
| PYRITOHEDRON | • pyritohedron n. (Mathematics) An irregular dodecahedron, the faces of which are identical but irregular pentagons. • pyritohedron n. (Mineralogy) The shape of one of the crystal habits of pyrite. • PYRITOHEDRON n. a pentagonal dodecahedron. |
| REHYDRATIONS | • rehydrations n. Plural of rehydration. • REHYDRATION n. the act of rehydrating. |
| REHYPNOTISED | • REHYPNOTISE v. to hypnotise again, also REHYPNOTIZE. |
| REHYPNOTIZED | • rehypnotized v. Simple past tense and past participle of rehypnotize. • REHYPNOTIZE v. to hypnotize again, also REHYPNOTISE. |
| SYNCHRONISED | • synchronised adj. Operating in unison, in a state of synchronisation. • synchronised v. Simple past tense and past participle of synchronise. • SYNCHRONISE v. to cause to happen at the same time, also SYNCHRONIZE. |
| SYNCHRONIZED | • synchronized adj. Having attained synchronization, together, coordinated, combined. • synchronized v. Simple past tense and past participle of synchronize. • SYNCHRONIZE v. to cause to happen at the same time, also SYNCHRONISE. |