13-letter words containing n, u
- agglutinogens — Plural form of agglutinogen.
- agro-industry — the large-scale production, processing, and packaging of food using modern equipment and methods.
- air ambulance — An air ambulance is a helicopter or plane that is used for taking people to hospital.
- air pollution — contamination of the atmosphere
- air-to-ground — operating between an aircraft in flight and a target on the ground
- airplane rule — aeroplane rule
- airplane turn — a midair turn made in the middle of a jump.
- ajax mountain — a peak on the Idaho-Montana border, in the Bitterroot Range of the Rocky Mountains. 10,900 feet (3,324 meters).
- albumen paper — a printing paper coated with albumen, salt, and citric acid and sensitized with silver nitrate, used c1850–80.
- albumen plate — a flexible zinc or aluminum printing plate coated with a photosensitive compound, used in offset printing of usually fewer than 50,000 copies.
- albumin color — (in textile printing) a color fixed to a fabric by an albuminous mordant.
- alfred austin — Alfred, 1835–1913, English poet: poet laureate 1896–1913.
- all-consuming — taking up all of someone's time and attention
- all-inclusive — All-inclusive is used to indicate that a price, especially the price of a holiday, includes all the charges and all the services offered.
- allochthonous — (of rocks, deposits, etc) found in a place other than where they or their constituents were formed
- alluvial cone — a steep, narrow, cone-shaped alluvial fan formed where a swift stream suddenly slows down, as where an upland stream emerges abruptly into a level plain
- alonzo church — (person) A twentieth century mathematician and logician, and one of the founders of computer science. Church invented the lambda-calculus and posited a version of the Church-Turing thesis.
- alphanumerics — Plural form of alphanumeric.
- alpine chough — a bird of the crow family, Pyrrocorax graculus, found in the highest mountain regions of S Europe and central Asia, with a yellow bill, black plumage, and red legs
- alpine tundra — a tundra that is treeless because of high elevation rather than high latitude.
- aluminiferous — containing or yielding aluminium or alumina
- aluminography — algraphy.
- aluminothermy — a process for reducing metallic oxides using finely divided aluminium powder. The mixture of aluminium and the oxide is ignited, causing the aluminium to be oxidized and the metal oxide to be reduced to the metal
- aluminum book — (publication) Due to a technical screwup some printings of the second edition are actually what the author calls "yucky green". See also book titles.
- aluminum foil — silver paper
- aluminum soap — any of the salts formed by higher carboxylic acids and aluminum, as aluminum oleate, aluminum palmitate, and aluminum stearate.
- amarantaceous — amaranthine
- amateur night — an entertainment featuring amateur performers, often in competition for prizes.
- ambient music — a style of popular music which aims to create a relaxing atmosphere
- ambiguousness — open to or having several possible meanings or interpretations; equivocal: an ambiguous answer.
- ambitiousness — having ambition; eagerly desirous of achieving or obtaining success, power, wealth, a specific goal, etc.: ambitious students.
- american curl — a breed of slender cat with curled-back ears and a plumed tail
- aminoaciduria — the presence of amino acids in urine
- ammonium salt — any salt containing the NH 4 + ion, formed by the neutralization of ammonium hydroxide by an acid.
- amorphousness — lacking definite form; having no specific shape; formless: the amorphous clouds.
- amundsen gulf — a gulf in the Beaufort Sea in the Canadian Northwest Territories.
- amusement tax — a tax on various forms of entertainment, paid on admissions to theaters, etc.
- anachronously — in an anachronous manner
- anak krakatau — a volcanic island in Indonesia formed by volcanic eruptions during and subsequent to 1927
- analogousness — The quality of being analogous.
- ancus marcius — a king of Rome, during whose reign the first bridge across the Tiber was constructed.
- androgynously — In an androgynous manner.
- anencephalous — congenital absence of part or all of the brain.
- anfractuosity — the condition or quality of being anfractuous
- angiospermous — of or relating to an angiosperm; having enclosed seeds.
- Ångstrom unit — a unit of length equal to 10 −10 metre, used principally to express the wavelengths of electromagnetic radiations. It is equivalent to 0.1 nanometre
- angular house — any of the four astrological houses that begin at the angles: the first, fourth, seventh, and tenth houses, that correspond, respectively, to self, home, others, and career.
- anisophyllous — having leaves of different shapes or sizes.
- announcements — Plural form of announcement.
- annual report — a report presented by the directors of a company to its shareholders each year, containing the profit-and-loss account, the balance sheet, and details of the past year's activity