15-letter words containing a, t, r, m
- harmonic motion — periodic motion consisting of one or more vibratory motions that are symmetric about a region of equilibrium, as the motion of a vibrating string of a musical instrument.
- haute-normandie — a region of NW France, on the English Channel: generally fertile and flat
- health minister — a government minister who is responsible for health
- heart tamponade — tamponade (def 2).
- hearth and home — domestic realm
- heather mixture — cloth made from a mixture of different yarns, predominantly grey but with flecks of different colours
- heliometrically — By means of, or in terms of, heliometry.
- hemadynamometer — An instrument by which the pressure of the blood in the arteries, or veins, is measured by the height to which it will raise a column of mercury.
- hematoporphyria — porphyria.
- hematoporphyrin — a porphyrin made by treating haemoglobin with acid, used to treat cancer in photodynamic therapy
- hemicraniectomy — (surgery) The surgical removal of half of the cranium to enable brain surgery; hemicraniotomy.
- hemochromatosis — a rare metabolic disorder characterized by a bronzed skin, cirrhosis, and severe diabetes, caused by the deposit in tissue, especially of the liver and pancreas, of hemosiderin and other pigments containing iron.
- henrietta maria — 1609–69, queen of England (1625–49), the wife of Charles I; daughter of Henry IV of France. Her Roman Catholicism contributed to the unpopularity of the crown in the period leading to the Civil War
- hepatocarcinoma — (pathology) cancer of the liver.
- hereditarianism — a person who believes that differences between individuals or groups, including moral and intellectual attributes, are predominantly determined by genetic factors (opposed to environmentalist).
- hermaphroditism — the condition of being a hermaphrodite.
- hermeneutically — of or relating to hermeneutics; interpretative; explanatory.
- heterochromatic — of, having, or pertaining to more than one color.
- heterochromatin — the dense, highly stainable part of a chromosome.
- heteronormative — noting or relating to behavior or attitudes consistent with traditional male or female gender roles and the assumption of heterosexuality as the norm: our heteronormative culture.
- heterosexualism — Discrimination of non-heterosexual people on the basis of their sexual orientation.
- hexahydrothymol — menthol.
- hierogrammatist — a writer of hierograms, hierogrammate
- high-water mark — a mark showing the highest level reached by a body of water.
- hip measurement — a measurement around the hips at the level of the buttocks used in clothing and assessing general health
- hip replacement — a surgical procedure involving replacing the hip joint with an artificial implant
- homoerotophobia — Homophobia; antipathy towards homosexuals.
- hopper casement — a casement with a sash hinged at the bottom.
- human relations — the study of group behavior for the purpose of improving interpersonal relationships, as among employees.
- humanitarianism — humanitarian principles or practices.
- humanitarianist — humanitarian principles or practices.
- 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
- hydraulic motor — a motor that converts the kinetic or potential energy of a fluid into mechanical energy.
- hydrodynamicist — a specialist in hydrodynamics.
- 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.
- 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.
- hypopituitarism — abnormally diminished activity of the pituitary gland, especially of the anterior lobe.
- hypoproteinemia — an abnormally low concentration of protein in the blood.
- identical rhyme — rhyme created by the repetition of a word.
- identity matrix — a matrix that has 1 in each position on the main diagonal and 0 in all other positions.
- image converter — a device for producing a visual image formed by other electromagnetic radiation such as infrared or ultraviolet radiation or X-rays
- immaterializing — Present participle of immaterialize.