15-letter words containing t, h, a, l
- hale and hearty — in good health
- half the battle — If you say that something is half the battle, you mean that it is the most important step towards achieving something.
- half wellington — a loose boot extending to just above the ankle and usually worn under the trousers.
- half-understood — partially understood
- half-wave plate — a crystal thin enough to cause a phase difference of 180° between the ordinary and extraordinary rays of polarized light, thereby changing the direction of the plane of polarization.
- halfheartedness — The characteristic of being half-hearted.
- 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
- harlequin table — a writing or dressing table having a central set of compartments that rise when drop leaves are raised.
- have to lump it — If you say that someone will have to lump it, you mean that they must accept a situation or decision whether they like it or not.
- health benefits — positive effects on health
- health minister — a government minister who is responsible for health
- heartbreakingly — causing intense anguish or sorrow.
- heath speedwell — a temperate scrophulariaceous plant, Veronica officinalis, having small blue or pinkish white flowers
- heating element — a coil or other arrangement of wire in which heat is produced by an electric current
- heavenly father — a term used to address or refer to God
- heavy artillery — guns and howitzers of large caliber.
- heavy-heartedly — in a heavy-hearted manner
- heliometrically — By means of, or in terms of, heliometry.
- hemel hempstead — a town in W Hertfordshire, in SE England.
- hepaticological — of or relating to hepaticology
- hermeneutically — of or relating to hermeneutics; interpretative; explanatory.
- 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.
- hewlett-packard — (HP) Hewlett-Packard designs, manufactures and services electronic products and systems for measurement, computation and communications. The company's products and services are used in industry, business, engineering, science, medicine and education in approximately 110 countries. HP was founded in 1939 and employs 96600 people, 58900 in the USA. They have manufacturing and R&D establishments in 54 cities in 16 countries and approximately 600 sales and service offices in 110 countries. Their revenue (in 1992/1993?) was $20.3 billion. The Chief Executive Officer is Lewis E. Platt. HP's stock is traded on the New York Stock Exchange and the Pacific, Tokyo, London, Frankfurt, Zurich and Paris exchanges. Quarterly sales $6053M, profits $347M (Aug 1994).
- hexahydrothymol — menthol.
- high-angle shot — a shot taken from a camera positioned above the action
- highland cattle — a breed of cattle with shaggy hair, usually reddish-brown in colour, and long horns
- hip replacement — a surgical procedure involving replacing the hip joint with an artificial implant
- histochemically — In a histochemical manner.
- histopathologic — the science dealing with the histological structure of abnormal or diseased tissue; pathological histology.
- 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 clothes — the clothes worn and bought for travelling on holiday, such as swimwear, skiwear, or clothes for hot or cold weather, etc
- holiday cottage — a cottage used for accommodation for a family, couple, etc, on holiday
- holiday traffic — increased road traffic during holiday periods and public holidays
- holocrystalline — (of igneous rocks) having only crystalline components and no glass
- homeopathically — By means of homeopathy.
- homeostatically — the tendency of a system, especially the physiological system of higher animals, to maintain internal stability, owing to the coordinated response of its parts to any situation or stimulus that would tend to disturb its normal condition or function.
- homosexualities — Plural form of homosexuality.
- 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.