15-letter words containing r, a, t, h, o, l
- eleutherodactyl — (of a bird) having the hind toe free
- eleutheromaniac — Having a passionate mania for freedom.
- eleutherophobia — the fear of freedom
- erythema solare — inflammation of the skin caused by overexposure to the sun
- erythromelalgia — A rare neurovascular peripheral pain disorder in which blood vessels, usually in the lower extremities or hands, are episodically blocked, then become hyperemic and inflamed.
- etherealization — The act or process of etherealizing.
- fallout shelter — protective bunker
- false buckthorn — a spiny shrub or small tree, Bumelia lanuginosa, of the sapodilla family, native to the southern U.S., having gummy, milky sap and white, bell-shaped flowers and yielding a hard, light-brown wood.
- five-star hotel — a top-quality hotel offering exceptional luxury
- floating charge — an unsecured charge on the assets of an enterprise that allows such assets to be used commercially until the enterprise ceases to operate or the creditor intervenes to demand collateral
- fluorophosphate — a salt or ester of a fluorophosphoric acid.
- forecastle head — the extreme fore part of a forecastle superstructure.
- four-ball match — a match, scored by holes, between two pairs of players, in which the four players tee off and the partners alternate in hitting the pair's ball having the better lie off the tee.
- fourth official — In football, the fourth official is an official who assists the referee and assistant referees from the side of the pitch.
- free throw lane — the rectangular area, 19 feet (5.7 meters) long and usually 12 or 16 feet (3.6 m or 4.8 meters) wide, extending from the end line behind each backboard to the foul line and along the sides of which players line up during a foul shot.
- french togoland — a former United Nations Trust Territory in W Africa, administered by France (1946–60), now the independent republic of Togo
- fusospirochetal — Relating to fusospirochetes.
- geostrophically — By means of, or in terms of, geostrophy.
- globe artichoke — artichoke (defs 1, 2).
- golden starfish — an award given to a bathing beach that meets EU standards of cleanliness
- graduate school — a school, usually a division of a university, offering courses leading to degrees more advanced than the bachelor's degree.
- grind to a halt — If a country's economy or something such as a process grinds to a halt, it gradually becomes slower or less active until it stops.
- half-understood — partially understood
- halting problem — The problem of determining in advance whether a particular program or algorithm will terminate or run forever. The halting problem is the canonical example of a provably unsolvable problem. Obviously any attempt to answer the question by actually executing the algorithm or simulating each step of its execution will only give an answer if the algorithm under consideration does terminate, otherwise the algorithm attempting to answer the question will itself run forever. Some special cases of the halting problem are partially solvable given sufficient resources. For example, if it is possible to record the complete state of the execution of the algorithm at each step and the current state is ever identical to some previous state then the algorithm is in a loop. This might require an arbitrary amount of storage however. Alternatively, if there are at most N possible different states then the algorithm can run for at most N steps without looping. A program analysis called termination analysis attempts to answer this question for limited kinds of input algorithm.
- hamiltonstovare — a large strong short-haired breed of hound with a black, brown, and white coat
- hard-luck story — a story of misfortune designed to elicit sympathy
- heliometrically — By means of, or in terms of, heliometry.
- heterocercality — the condition or state of having a heterocercal tail
- heterodactylous — having the first and fourth toes directed backward, and the second and third forward, as in trogons.
- 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.
- heterotolerance — (immunology) Subsequent unresponsiveness to a different agonist.
- hexahydrothymol — menthol.
- historical cost — The historical cost of an asset is its original cost when it was first acquired by a company.
- holding pattern — a traffic pattern for aircraft at a specified location (holding point) where they are ordered to remain until permitted to land or proceed.
- holiday traffic — increased road traffic during holiday periods and public holidays
- holocrystalline — (of igneous rocks) having only crystalline components and no glass
- horatius cocles — a legendary Roman hero of the 6th century bc, who defended a bridge over the Tiber against Lars Porsena
- horizontal well — A horizontal well is a well which has sections that have been drilled at more than 80 degrees from the vertical in order to penetrate a greater length of the reservoir.
- horse artillery — cavalry equipped with artillery
- 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.
- hospital corner — a fold on a bed sheet or blanket made by tucking the foot or head of the sheet straight under the mattress with the ends protruding and then making a diagonal fold at the side corner of the sheet and tucking this under to produce a triangular corner.
- hospital doctor — a hospital doctor works in a hospital, rather than as a general practitioner, in the army, etc
- host-host layer — transport layer
- hot-air balloon — passenger balloon
- human relations — the study of group behavior for the purpose of improving interpersonal relationships, as among employees.
- hunting leopard — the cheetah.
- 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.