| ARITHMOMETER | • arithmometer n. (Dated) A calculating machine. • ARITHMOMETER n. (obsolete) an early adding machine. |
| CHROMONEMATA | • chromonemata n. Plural of chromonema. • CHROMONEMA n. the coiled filamentous core of a chromatid. |
| HAMMERCLOTHS | • hammercloths n. Plural of hammercloth. • hammer-cloths n. Plural of hammer-cloth. • HAMMERCLOTH n. a cloth covering a coach box. |
| HAMMERSTONES | • hammerstones n. Plural of hammerstone. • HAMMERSTONE n. a stone used as a hammer in the production of tools during the Acheulian period. |
| HARMONOMETER | • harmonometer n. (Rare, dated) An instrument for measuring the harmonic relations of sounds. • HARMONOMETER n. an instrument for measuring the harmonic relations of sounds. |
| HECTOGRAMMES | • hectogrammes n. Plural of hectogramme. • HECTOGRAMME n. a measure of weight, containing a hundred grams, also HECTOGRAM, HEKTOGRAM. |
| HIEROGRAMMAT | • HIEROGRAMMAT n. a writer of sacred records, also HIEROGRAMMATE. |
| HOMEOTHERMAL | • homeothermal adj. Alternative form of homeothermic. • HOMEOTHERMAL adj. keeping the same temperature, warm-blooded, also HOMOEOTHERMAL, HOMOEOTHERMIC, HOMOEOTHERMOUS, HOMOIOTHERMAL, HOMOTHERMAL, HOMOTHERMIC. |
| METACHRONISM | • metachronism n. An error in chronological ordering in which a character or an event is placed at too late a time. • METACHRONISM n. an error of dating an event too late. |
| METAMORPHISM | • metamorphism n. (Geology) The process by which rocks are changed into other forms by the application of heat and/or pressure. • metamorphism n. (Zoology) The process by which insects develop through life stages, for example, those of embryo, larva… • metamorphism n. (By extension) Any dramatic change from one thing to another. |
| METAMORPHIST | • metamorphist n. (Theology) One who believes that the body of Christ was merged into God when he ascended. • METAMORPHIST n. a person who believes that Christ's body merged into the Deity at the Ascension. |
| METAMORPHOSE | • metamorphose v. (Of a moth or insect, intransitive) To undergo metamorphosis. • metamorphose v. (By extension, intransitive) To undergo some transformation. • metamorphose v. (Transitive) To transform (something) so that it has a completely different appearance. |
| METAMORPHOUS | • metamorphous adj. Metamorphic. • METAMORPHOUS adj. of or relating to metamorphosis (especially of rocks). |
| METHANOMETER | • methanometer n. An instrument, resembling a eudiometer, used to detect the presence and amount of methane, as in coal mines. • METHANOMETER n. instrument for detecting presence of methane. |
| MONOCHROMATE | • monochromate n. (Inorganic chemistry) A compound that has a single chromate anion per molecule or unit cell. • monochromate v. To monochromatize. • MONOCHROMATE n. a person who sees all colours as different shades of a single colour, also MONOCHROMAT. |
| NORMOTHERMIA | • normothermia n. (Medicine) The condition of having a normal body temperature. • NORMOTHERMIA n. normal body temperature. |
| OMMATOPHORES | • ommatophores n. Plural of ommatophore. • OMMATOPHORE n. an eyestalk, as in snails. |