15-letter words containing r, h, u, m
- haemoglobinuria — the presence of haemoglobin in the urine
- haemoglobinuric — relating to the presence of haemoglobin in the urine
- haute-normandie — a region of NW France, on the English Channel: generally fertile and flat
- heather mixture — cloth made from a mixture of different yarns, predominantly grey but with flecks of different colours
- hermeneutically — of or relating to hermeneutics; interpretative; explanatory.
- heterosexualism — Discrimination of non-heterosexual people on the basis of their sexual orientation.
- hip measurement — a measurement around the hips at the level of the buttocks used in clothing and assessing general health
- 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.
- horned cucumber — a tropical African plant, Cucumis metuliferus, having fruit with spiky, orange skin and jellylike pulp that tastes like cucumbers.
- housemistresses — Plural form of housemistress.
- hughes syndrome — a condition of the autoimmune system caused by antibodies reacting against phospholipids, leading to thrombosis
- human geography — the study of the interaction between human beings and their environment in particular places and across spatial areas.
- human relations — the study of group behavior for the purpose of improving interpersonal relationships, as among employees.
- human resources — (used with a plural verb) people, especially the personnel employed by a given company, institution, or the like.
- humanitarianism — humanitarian principles or practices.
- humanitarianist — humanitarian principles or practices.
- humpback bridge — arched bridge
- 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
- hurdle champion — a hurdler who has defeated all others in a competition
- hybrid computer — a computer system containing both analog and digital hardware.
- hydraulic motor — a motor that converts the kinetic or potential energy of a fluid into mechanical energy.
- hydrometallurgy — the technique or process of extracting metals at ordinary temperatures by leaching ore with liquid solvents.
- hydroxonium ion — a positive ion, H3O+, formed by the attachment of a proton to a water molecule: occurs in solutions of acids and behaves like a hydrogen ion
- hydroxycoumarin — (organic compound) Any of several isomeric hydroxy derivatives of coumarin, some of which are the basis of pharmaceuticals.
- hyperinsulinism — excessive insulin in the blood, resulting in hypoglycemia.
- hypermutability — liable or subject to change or alteration.
- hypopituitarism — abnormally diminished activity of the pituitary gland, especially of the anterior lobe.
- immunochemistry — the study of the chemistry of immunologic substances and reactions.
- imperial bushel — a unit of dry measure containing 4 pecks, equivalent in the U.S. (and formerly in England) to 2150.42 cubic inches or 35.24 liters (Winchester bushel) and in Great Britain to 2219.36 cubic inches or 36.38 liters (Imperial bushel) Abbreviation: bu., bush.
- in the doldrums — miserable, depressed
- inch of mercury — a unit of atmospheric pressure, being the pressure equal to that exerted by a column of mercury one inch high under standard conditions of temperature and gravity: 33.864 millibars. Abbreviation: in. Hg.
- jerusalem thorn — See under Christ's-thorn.
- 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.
- lavatory humour — humour characterized by excessive mention of lavatories and the excretory functions; vulgar or scatological humour
- 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
- lymphogranuloma — any of certain diseases characterized by granulomatous lesions of lymph nodes.
- magic mushrooms — a mushroom, Psilocybe mexicana, of Mexico and the southwestern U.S., containing the hallucinogen psilocybin.
- mahrisch-ostrau — German name of Moravská Ostrava.
- 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.
- manukau harbour — an inlet of the Tasman Sea near Auckland in New Zealand on NW North Island
- 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.
- marlborough leg — a tapered leg having a square section.
- masculine rhyme — a rhyme of but a single stressed syllable, as in disdain, complain.
- matta echaurren — Roberto Antonio Sebastián [raw-ver-taw ahn-taw-nyaw se-vahs-tyahn] /rɔˈvɛr tɔ ɑnˈtɔ nyɔ ˌsɛ vɑsˈtyɑn/ (Show IPA), 1911–2002, Chilean painter.
- maundy thursday — the Thursday of Holy Week, commemorating Jesus' Last Supper and His washing of the disciples' feet upon that day.