15-letter words containing m, e, r, t, h
- hopeful monster — a hypothetical individual organism that, by means of a fortuitous macromutation permitting an adaptive shift to a new mode of life, becomes the founder of a new type of organism and a vehicle of macroevolution.
- hopper casement — a casement with a sash hinged at the bottom.
- horner's method — a technique, involving successive substitutions, for approximating the real roots of an equation with real coefficients.
- housemistresses — Plural form of housemistress.
- human relations — the study of group behavior for the purpose of improving interpersonal relationships, as among employees.
- humphrey bogart — Humphrey (DeForest) ("Bogie"or"Bogey") 1899–57, U.S. motion-picture actor.
- hung parliament — a parliament that does not have a party with a working majority
- hybrid computer — a computer system containing both analog and digital hardware.
- hydrometallurgy — the technique or process of extracting metals at ordinary temperatures by leaching ore with liquid solvents.
- hyetometrograph — an instrument used to record rainfall
- hyper-emotional — pertaining to or involving emotion or the emotions.
- hypercatabolism — an abnormally high metabolic breakdown of a substance or tissue which leads to weight loss and physical deterioration
- hyperdemocratic — pertaining to or of the nature of democracy or a democracy.
- hyperexcitement — excessive or extreme excitement
- hyperfemininity — the quality of being feminine; womanliness.
- hypermetabolism — Biology, Physiology. the sum of the physical and chemical processes in an organism by which its material substance is produced, maintained, and destroyed, and by which energy is made available. Compare anabolism, catabolism.
- hypermutability — liable or subject to change or alteration.
- hyperparasitism — an organism that is parasitic on or in another parasite.
- hyperpotassemia — hyperkalemia.
- hyperthyroidism — overactivity of the thyroid gland.
- hypoproteinemia — an abnormally low concentration of protein in the blood.
- identical rhyme — rhyme created by the repetition of a word.
- immunochemistry — the study of the chemistry of immunologic substances and reactions.
- imperfect-rhyme — rhyme in which either the vowels or the consonants of stressed syllables are identical, as in eyes, light; years, yours.
- imperishability — not subject to decay; indestructible; enduring.
- in the doldrums — miserable, depressed
- in the majority — the largest group
- interchangement — the act of interchanging
- isothermal-line — Meteorology. a line on a weather map or chart connecting points having equal temperature.
- jerusalem thorn — See under Christ's-thorn.
- katathermometer — a thermometer used to measure the cooling power of ambient air
- keratoacanthoma — (pathology) A common low-grade malignancy of the skin.
- largemouth bass — a North American freshwater game fish, Micropterus salmoides, having an upper jaw extending behind the eye and a broad, dark, irregular stripe along each side of the body. Compare smallmouth bass.
- laser chemistry — the use of a laser to initiate and control chemical reactions.
- like grim death — as if afraid for one's life
- lithium battery — A lithium battery is a type of battery used for low-power, high-reliability, long-life applications, such as clocks, cameras and calculators.
- lithium citrate — a white crystalline solid sometimes used in the treatment of manic-depressive illness and mania. Formula: Li3C6H5O7
- machinery steel — low-carbon steel that can be easily machined.
- mad as a hatter — mentally disturbed; deranged; insane; demented.
- magnetorheology — the study of the relationships between the particle and fluid properties of magnetic suspensions.
- maidenhair tree — ginkgo.
- maidenhair-tree — ginkgo.
- make it hot for — having or giving off heat; having a high temperature: a hot fire; hot coffee.
- make the effort — try
- make the rounds — having a flat, circular surface, as a disk.
- man of the hour — a man who is honored by a group.
- manasseh cutler — Manasseh, 1742–1823, U.S. Congregational clergyman and scientist: promoted settlement of Ohio; congressman 1801–05.
- manx shearwater — a European oceanic bird, Puffinus puffinus, with long slender wings and black-and-white plumage: family Procellariidae (shearwaters)
- marathon runner — person who runs in a marathon race
- mare erythraeum — (Red Sea) an area in the southern hemisphere of Mars, appearing as a dark region when viewed telescopically from the earth.