15-letter words containing o, t, h, e, r
- 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 row to hoe — a number of persons or things arranged in a line, especially a straight line: a row of apple trees.
- haute-normandie — a region of NW France, on the English Channel: generally fertile and flat
- have a right to — be entitled to
- have the ear of — to be in a position to influence
- have words with — to argue angrily with
- hay conditioner — either of two machines, one designed to crush stems of hay, the other to break and bend them, in order to cause more rapid and even drying
- hazardous waste — any industrial by-product, especially from the manufacture of chemicals, that is destructive to the environment or dangerous to the health of people or animals: Hazardous wastes often contaminate ground water.
- heart condition — cardiac disorder
- heart of hearts — the depths of one's conscience or emotions
- heart operation — a surgical operation performed on the heart
- heart tamponade — tamponade (def 2).
- heart's content — Anatomy. a hollow, pumplike organ of blood circulation, composed mainly of rhythmically contractile smooth muscle, located in the chest between the lungs and slightly to the left and consisting of four chambers: a right atrium that receives blood returning from the body via the superior and inferior vena cavae, a right ventricle that pumps the blood through the pulmonary artery to the lungs for oxygenation, a left atrium that receives the oxygenated blood via the pulmonary veins and passes it through the mitral valve, and a left ventricle that pumps the oxygenated blood, via the aorta, throughout the body.
- heartbrokenness — The state or quality of being heartbroken.
- hearth and home — domestic realm
- hedge your bets — play it safe, lessen a risk
- height-to-paper — the standard height of type, measured from the foot to the face, in the U.S. 0.918 of an inch (2.33 cm).
- helicopter view — an overview of a situation without any details
- heliocentricity — measured or considered as being seen from the center of the sun.
- heliometrically — By means of, or in terms of, heliometry.
- hemadynamometer — An instrument by which the pressure of the blood in the arteries, or veins, is measured by the height to which it will raise a column of mercury.
- hematoporphyria — porphyria.
- hematoporphyrin — a porphyrin made by treating haemoglobin with acid, used to treat cancer in photodynamic therapy
- hemicraniectomy — (surgery) The surgical removal of half of the cranium to enable brain surgery; hemicraniotomy.
- hemicryptophyte — any perennial plant that bears its overwintering buds at soil level, where they are often partly covered by surface debris
- hemochromatosis — a rare metabolic disorder characterized by a bronzed skin, cirrhosis, and severe diabetes, caused by the deposit in tissue, especially of the liver and pancreas, of hemosiderin and other pigments containing iron.
- hepatocarcinoma — (pathology) cancer of the liver.
- hermaphroditism — the condition of being a hermaphrodite.
- hernando cortes — Hernando [er-nahn-daw] /ɛrˈnɑn dɔ/ (Show IPA), Hernán [er-nahn] /ɛrˈnɑn/ (Show IPA), 1485–1547, Spanish conqueror of Mexico.
- hernando cortez — Hernando [er-nahn-daw] /ɛrˈnɑn dɔ/ (Show IPA), Hernán [er-nahn] /ɛrˈnɑn/ (Show IPA), 1485–1547, Spanish conqueror of Mexico.
- herod the great — ("the Great") 73?–4 b.c, king of Judea 37–4.
- heterocercality — the condition or state of having a heterocercal tail
- heterochromatic — of, having, or pertaining to more than one color.
- heterochromatin — the dense, highly stainable part of a chromosome.
- heterochthonous — not indigenous; foreign (opposed to autochthonous): heterochthonous flora and fauna.
- 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.
- heterogeneities — the quality or state of being heterogeneous; composition from dissimilar parts; disparateness.
- heterogeneously — different in kind; unlike; incongruous.
- heteronormative — noting or relating to behavior or attitudes consistent with traditional male or female gender roles and the assumption of heterosexuality as the norm: our heteronormative culture.
- heteroscedastic — (of several distributions) having different variances
- 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.
- hibernicization — the process or act of making Irish
- hierogrammatist — a writer of hierograms, hierogrammate
- high priesthood — the condition or office of a high priest.
- high resolution — a great amount of detail visible in a photographic, TV, or video image