15-letter words containing a, l, r, e
- guadalupe river — a river in SE Texas, flowing SE to the San Antonio River. 250 miles (402 km) long.
- guardian angels — an angel believed to protect a particular person, as from danger or error.
- guerrilla group — an organized group of guerrillas
- gyrostabilizers — Plural form of gyrostabilizer.
- haemoglobinuria — the presence of haemoglobin in the urine
- haemoglobinuric — relating to the presence of haemoglobin in the urine
- hair specialist — an expert in the treatment and care of human hair
- hale and hearty — in good health
- half-remembered — (of a memory, idea, etc) partially remembered or recalled
- half-round file — a file having a semicircular cross-section
- half-understood — partially understood
- 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.
- hamersley range — a mountain range in N Western Australia: iron-ore deposits. Highest peak: 1236 m (4056 ft)
- hamiltonstovare — a large strong short-haired breed of hound with a black, brown, and white coat
- hanging glacier — a glacier situated on a shelf above a valley or another glacier; it may be joined to the lower level by an icefall or separate from it
- hard-boiled egg — egg boiled until the yolk is set
- hard-shell clam — quahog.
- hard-shell crab — a crab, especially an edible crab, that has not recently molted and has a hard shell.
- 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
- hardware dealer — a person or shop who deals in metal tools and implements and mechanical equipment and components, etc
- hardy perennial — a plant that lasts three seasons or more and that can withstand freezing temperatures
- 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.
- haversian canal — a microscopic channel in bone, through which a blood vessel runs.
- head over heels — the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth.
- heads will roll — If you say that heads will roll as a result of something bad that has happened, you mean that people will be punished for it, especially by losing their jobs.
- health minister — a government minister who is responsible for health
- heartbreakingly — causing intense anguish or sorrow.
- heavenly father — a term used to address or refer to God
- heaviside layer — E layer.
- heavy artillery — guns and howitzers of large caliber.
- heavy-heartedly — in a heavy-hearted manner
- hebrew calendar — the lunisolar calendar used by Jews, as for determining religious holidays, that is reckoned from 3761 b.c. and was established by Hillel II in the 4th century a.d., the calendar year consisting of 353 days (defective year) 354 days (regular year) or 355 days (perfect year or abundant year) and containing 12 months: Tishri, Heshvan, Kislev, Tevet, Shevat, Adar, Nisan, Iyar, Sivan, Tammuz, Av, and Elul, with the 29-day intercalary month of Adar Sheni added after Adar seven times in every 19-year cycle in order to adjust the calendar to the solar cycle. The Jewish ecclesiastical year begins with Nisan and the civil year with Tishri.
- heliacal rising — rising of a celestial object at approximately the same time as the rising of the sun
- heliometrically — By means of, or in terms of, heliometry.
- heralds' office — the official heraldic authority of Scotland.
- herbal medicine — the use of herbs to treat illness
- heredo-familial — denoting a condition or disease that may be passed from generation to generation and to several members of one family
- hermeneutically — of or relating to hermeneutics; interpretative; explanatory.
- herpes labialis — oral herpes.
- 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).
- hexachlorophene — a white, crystalline powder, C 13 Cl 6 H 6 O 2 , insoluble in water: used as an antibacterial agent chiefly in toothpastes and soaps.
- hexahydrothymol — menthol.
- hip replacement — a surgical procedure involving replacing the hip joint with an artificial implant