21-letter words containing h, o, a, r, u
- human papilloma virus — a species of virus that causes genital warts. Abbreviation: HPV.
- hydraulic accumulator — an apparatus in which gas, usually air, is used as a cushion or shock absorber in a hydraulic system.
- in (or out of) phase — in (or not in) a state of exactly parallel movements, oscillations, etc.; in (or not in) synchronization
- industrial psychology — the application of psychological principles and techniques to business and industrial problems, as in the selection of personnel or development of training programs.
- insulin shock therapy — a former treatment for mental illness, especially schizophrenia, employing insulin-induced hypoglycemia as a method for producing convulsive seizures.
- joseph bonaparte gulf — an inlet of the Timor Sea in N Australia. Width: 360 km (225 miles)
- joseph-marie jacquard — (person) /zhoh-zef' mah-ree' zhah-kar'/ (1752-07-07 to 1834-08-07) The inventor of the Jacquard loom.
- lap and shoulder belt — a car seat belt
- launch control center — any of a number of underground U.S. command facilities prepared to launch land-based missiles in event of war.
- lotus-of-the-true-law — a Mahayana sutra, forming with its references to Amida and the Bodhisattvas the basis for the doctrine that there is something of Buddha in everyone, so that salvation is universally available: a central text of Mahayana Buddhism.
- maître d'hôtel butter — melted butter mixed with parsley and lemon juice
- make yourself at home — settle in
- maximum value theorem — the theorem that for a real-valued function f whose domain is a compact set, there is at least one element x in the domain of f for which f (x) achieves its largest value.
- miniature photography — photography with a camera using film that is 35 millimeters wide or less.
- mother-of-pearl cloud — nacreous cloud.
- mucopolysaccharidoses — Plural form of mucopolysaccharidosis.
- mucopolysaccharidosis — Any of a group of metabolic disorders caused by the absence or malfunction of lysosomal enzymes needed to break down glycosaminoglycans.
- munchausen's syndrome — a mental disorder in which a patient feigns illness to obtain hospital treatment
- north east new guinea — the NE part of the former Australian Territory of New Guinea; now part of Papua New Guinea.
- north pacific current — a warm current flowing eastward across the Pacific Ocean.
- northumberland strait — the part of the Gulf of St. Lawrence that separates Prince Edward Island from New Brunswick and Nova Scotia, in SE Canada. About 200 miles (320 km) long; 9–30 miles (15–48 km) wide.
- not care a hang about — to not care the least bit about
- nothing in particular — not anything specific
- on o's best behaviour — If someone is on their best behaviour, they are trying very hard to behave well.
- ophthalmia neonatorum — inflammation of the eyes of a newborn child due to an infectious disease, as gonorrhea, contracted during birth from the infected mother.
- orthophosphorous acid — a white to yellowish, crystalline, hygroscopic, water-soluble solid, H 3 PO 3 , used chiefly in the synthesis of phosphites.
- part of the furniture — If you describe someone or something as part of the furniture, you are suggesting that they have been somewhere such as their place of work for such a long time that it is hard to imagine that place without them.
- pass the hat (around) — In British English, if you pass the hat around, you collect money from a group of people, for example in order to give someone a present. In American English, you just say pass the hat.
- pathfinder prospectus — a prospectus regarding the flotation of a new company that contains only sufficient details to test the market reaction
- ploughman's spikenard — a European plant, Inula conyza, with tubular yellowish flower heads surrounded by purple bracts: family Asteraceae (composites)
- pneumoencephalography — encephalography.
- populist shop steward — a shop steward who operates in a delegate role, putting the immediate interests of his members before union principles and policies
- pseudohermaphroditism — an individual having internal reproductive organs of one sex and external sexual characteristics resembling those of the other sex or being ambiguous in nature. Compare hermaphrodite (def 1).
- rap over the knuckles — to reprimand
- rayleigh distribution — (mathematics) A curve that yields a good approximation to the actual labour curves on software projects.
- rectangular hyperbola — a hyperbola with perpendicular asymptotes
- richard coeur de lion — ("Richard the Lion-Hearted"; "Richard Coeur de Lion") 1157–99, king of England 1189–99.
- ring down the curtain — to lower the curtain at the end of a theatrical performance
- ring-around-the-rosey — a children's game in which the players sing while going around in a circle and squat when the lyrics “all fall down” are sung.
- roman catholic church — the Christian church of which the pope, or bishop of Rome, is the supreme head.
- rutherford scattering — the scattering of an alpha particle through a large angle with respect to the original direction of motion of the particle, caused by an atom (Rutherford atom) with most of the mass and all of the positive electric charge concentrated at a center or nucleus.
- s-k reduction machine — An abstract machine defined by Professor David Turner to evaluate combinator expressions represented as binary graphs. Named after the two basic combinators, S and K.
- satisficing behaviour — the form of behaviour demonstrated by firms who seek satisfactory profits and satisfactory growth rather than maximum profits
- secure hash algorithm —
- single spanish burton — a tackle having a runner as well as the fall supporting the load, giving a mechanical advantage of three, neglecting friction.
- snr bandwidth product — (communications) The integral of the SNR over frequency. The SNR bandwidth product is an important limit in the capacity of a communication channel.
- south pacific current — an ocean current that flows E in the South Pacific Ocean parallel to the Antarctic Circumpolar Current.
- sovereign wealth fund — an investment fund created using the financial assets of a national government
- space shuttle orbiter — orbiter (def 1).
- structural psychology — psychology centering on the analysis of the structure or content of conscious mental states by introspective methods.