15-letter words containing h, u, r, l
- graduate school — a school, usually a division of a university, offering courses leading to degrees more advanced than the bachelor's degree.
- graph colouring — (application) A constraint-satisfaction problem often used as a test case in research, which also turns out to be equivalent to certain real-world problems (e.g. register allocation). Given a connected graph and a fixed number of colours, the problem is to assign a colour to each node, subject to the constraint that any two connected nodes cannot be assigned the same colour. This is an example of an NP-complete problem. See also four colour map theorem.
- gulf of corinth — an inlet of the Ionian Sea between the Peloponnese and central Greece
- haemoglobinuria — the presence of haemoglobin in the urine
- haemoglobinuric — relating to the presence of haemoglobin in the urine
- half-round file — a file having a semicircular cross-section
- half-understood — partially understood
- hard-luck story — a story of misfortune designed to elicit sympathy
- hardship clause — a clause in a contract which covers unforeseen events that would make it more difficult for one party to complete the contract, and in which case offers alternative terms
- harlequin snake — the E American coral snake (Micrurus fulvius)
- harlequin table — a writing or dressing table having a central set of compartments that rise when drop leaves are raised.
- harun al-rashid — a.d. 764?–809, caliph of Baghdad 786–809: one of the greatest Abbasids, he was made almost a legendary hero in the Arabian Nights.
- hercules beetle — a large Neotropical rhinoceros beetle, Dynastes hercules.
- hermeneutically — of or relating to hermeneutics; interpretative; explanatory.
- heterodactylous — having the first and fourth toes directed backward, and the second and third forward, as in trogons.
- heterofullerene — (chemistry) Any compound formally derived from a fullerene by replacing one or more carbon atom by a heteroatom.
- heterogeneously — different in kind; unlike; incongruous.
- heterosexualism — Discrimination of non-heterosexual people on the basis of their sexual orientation.
- heterosexuality — sexual feeling or behavior directed toward a person or persons of the opposite sex.
- high resolution — a great amount of detail visible in a photographic, TV, or video image
- high-resolution — having or capable of producing an image characterized by fine detail: high-resolution photography; high-resolution lens.
- hindenburg line — a line of elaborate fortifications established by the German army in World War I, near the French-Belgian border, from Lille SE to Metz.
- holding furnace — a small furnace for holding molten metal produced in a larger melting furnace at a desired temperature for casting.
- 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.
- horatius cocles — a legendary Roman hero of the 6th century bc, who defended a bridge over the Tiber against Lars Porsena
- horse latitudes — the latitudes near 30°N or 30°S at sea, characterized by baffling winds, calms, and high barometric pressure
- horticulturally — With respect to horticulture.
- horticulturists — Plural form of horticulturist.
- human relations — the study of group behavior for the purpose of improving interpersonal relationships, as among employees.
- hundred flowers — the 1957 political campaign in the People's Republic of China to encourage greater freedom of intellectual expression, initiated by Mao Zedong under the slogan “Let a hundred flowers bloom, let a hundred schools of thought contend.”.
- hundred's place — hundred (def 8).
- hung parliament — a parliament that does not have a party with a working majority
- hunting leopard — the cheetah.
- hurdle champion — a hurdler who has defeated all others in a competition
- hyaluronic acid — a mucopolysaccharide serving as a viscous medium in the tissues of the body and as a lubricant in joints.
- hydraulic brake — a brake operated by fluid pressures in cylinders and connecting tubular lines.
- hydraulic fluid — a fluid, usually of low viscosity, as oil, used in a hydraulic system.
- hydraulic motor — a motor that converts the kinetic or potential energy of a fluid into mechanical energy.
- hydraulic press — a machine permitting a small force applied to a small piston to produce, through fluid pressure, a large force on a large piston.
- hydrometallurgy — the technique or process of extracting metals at ordinary temperatures by leaching ore with liquid solvents.
- hydrosulphurous — relating to or derived from hydrosulphurous acid
- hypercalcinuria — Condition of high levels of calcium in the urine as caused by high levels of bone resorption seen in osteoporosis or hyperthyroidism.
- hypercoagulable — related to excessive coagulation of the blood or blood clots
- hyperfunctional — of or relating to a function or functions: functional difficulties in the administration.
- hyperinsulinism — excessive insulin in the blood, resulting in hypoglycemia.
- hyperinvolution — a decrease in the size of an organ following enlargement, usually used to describe the shrinking of the uterus after childbirth
- hypermutability — liable or subject to change or alteration.
- hypersexualised — Simple past tense and past participle of hypersexualise.
- hypersexualized — Simple past tense and past participle of hypersexualize.
- ichthyodorulite — a spiny plate located on the tail and back of some fish or similar vertebrates