| ARCHAEOPTERYX | • archaeopteryx n. Alternative spelling of archeopteryx. • Archaeopteryx prop.n. A taxonomic genus within the family Archaeopterygidae – known from fossils and widely accepted as the… • archæopteryx n. Rare spelling of archeopteryx. |
| EXOTHERMICITY | • exothermicity n. (Chemistry, physics, uncountable) The quality or state of being exothermic. • exothermicity n. (Countable) The release of heat during an exothermic reaction. • EXOTHERMICITY n. the state of being exothermic. |
| HYDROPEROXIDE | • hydroperoxide n. (Organic chemistry) any mono-substituted derivative of hydrogen peroxide - ROOH. • HYDROPEROXIDE n. a compound containing an O2H group. |
| HYDROTHORAXES | • hydrothoraxes n. Plural of hydrothorax. • HYDROTHORAX n. water liquid in the pleural cavity. |
| HYDROXYACETIC | • HYDROXYACETIC adj. as in hydroxyacetic acid, another name for glycolic acid. |
| HYDROXYCITRIC | • HYDROXYCITRIC adj. as in hydroxycitric acid, an extract of the plant garcinia. |
| HYDROXYLAMINE | • hydroxylamine n. (Inorganic chemistry) An explosive inorganic derivative of ammonia, NH2OH, used as a reducing agent… • hydroxylamine n. (Organic chemistry) Any organic derivative of this compound. • HYDROXYLAMINE n. a colorless odorless nitrogenous base that resembles ammonia in its reactions. |
| HYDROXYLATING | • hydroxylating v. Present participle of hydroxylate. • HYDROXYLATE v. to introduce hydroxyl into. |
| HYDROXYLATION | • hydroxylation n. (Organic chemistry) The introduction of a hydroxyl group into a molecule, especially by the replacement… • HYDROXYLATION n. the act of hydroxylating. |
| HYPEREXTENDED | • hyperextended adj. Extremely long; extended greatly. • hyperextended v. Simple past tense and past participle of hyperextend. • HYPEREXTEND v. to extend so that the angle between bones of a joint is greater than normal. |
| HYPERPROSEXIA | • hyperprosexia n. (Medicine, rare) Excessive attention; an abnormal state in which a person concentrates on one thing… • HYPERPROSEXIA n. abnormal powers of perception, as in Australian aboriginal trackers. |
| HYPERPYREXIAL | • hyperpyrexial adj. Exhibiting or relating to hyperpyrexia. • HYPERPYREXIAL adj. showing hyperpyrexia, an extremely high fever. |
| HYPERPYREXIAS | • hyperpyrexias n. Plural of hyperpyrexia. • HYPERPYREXIA n. an extremely high fever, with a temperature of 41 degrees Centigrade or above, also HYPERTHERMY. |
| HYPOPHARYNXES | • hypopharynxes n. Plural of hypopharynx. • HYPOPHARYNX n. an appendage or thickened fold on the floor of the mouth of many insects that resembles a tongue. |
| METHOXYCHLORS | • METHOXYCHLOR n. a relatively nontoxic organochlorine insecticide. |
| NASOPHARYNXES | • nasopharynxes n. Plural of nasopharynx. • NASOPHARYNX n. the upper part of the pharynx continuous with the nasal passages. |
| ORTHOPYROXENE | • orthopyroxene n. (Mineralogy) Any pyroxene that forms orthorhombic crystals. • ORTHOPYROXENE n. a member of the pyroxene group of minerals having an orthorhombic crystal structure, such as enstatite and hypersthene. |
| OXYRHYNCHUSES | • OXYRHYNCHUS n. an Egyptian fish, sacred to the goddess Hathor, represented on coins and sculptures. |
| PROPOXYPHENES | • propoxyphenes n. Plural of propoxyphene. • PROPOXYPHENE n. a narcotic analgesic structurally related to methadone but less addicting. |
| XYLOGRAPHICAL | • xylographical adj. Xylographic. • XYLOGRAPHICAL adj. relating to xylography, the art of making engravings on wood, also XYLOGRAPHIC. |