13-letter words containing a, s, u
- aerosinusitis — inflammation of the nasal sinuses caused by the effect on the sinuses of changes in atmospheric pressure.
- aerostructure — any separately manufactured unit, component, or section of an aircraft or other vehicle capable of flight
- afterthoughts — Plural form of afterthought.
- agglutinogens — Plural form of agglutinogen.
- agriculturist — an agricultural expert
- agro-industry — the large-scale production, processing, and packaging of food using modern equipment and methods.
- aius locutius — a disembodied voice that warned the Romans of a coming invasion by the Gauls.
- albertosaurus — A giant fierce carnivorous tyrannosaurus-like dinosaur, of gemus Albertosaurus, discovered in Alberta, Canada.
- albizu campos — Pedro [pe-th raw] /ˈpɛ ðrɔ/ (Show IPA), 1891–1964, Puerto Rican political leader.
- alcohol abuse — the excessive consumption of alcoholic drinks
- 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
- allyl sulfide — a colorless or pale yellow, water-insoluble liquid, C 6 H 10 S, having a garlicky odor, used chiefly in flavoring.
- alphabet soup — a confusing series of acronyms or abbreviations
- alphanumerics — Plural form of alphanumeric.
- althorp house — a mansion in Northamptonshire: seat of the Earls Spencer since 1508; originally a medieval house; altered (1787) to its present neoclassical style by Henry Holland. Diana, Princess of Wales is buried on Round Oval Island in the centre of the ornamental lake in Althorp Park
- aluminiferous — containing or yielding aluminium or alumina
- aluminum soap — any of the salts formed by higher carboxylic acids and aluminum, as aluminum oleate, aluminum palmitate, and aluminum stearate.
- alumosilicate — (inorganic chemistry) The anion [AlSiO4]-1.
- amarantaceous — amaranthine
- ambidexterous — ambidextrous
- 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.
- ambimoustrous — able to use a computer mouse proficiently with either hand
- ambisexuality — the state of being ambisexual
- ambitiousness — having ambition; eagerly desirous of achieving or obtaining success, power, wealth, a specific goal, etc.: ambitious students.
- america's cup — an international yachting trophy, first won by the schooner America in 1851 and held as a challenge trophy by the New York Yacht Club until 1983
- amicus curiae — a person not directly engaged in a case who advises the court
- 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.
- amphiblastula — the free-swimming larva of certain sponges, which consists of a hollow spherical mass of cells some of which have flagella
- amphigastrium — any of the small leaves or appendages on the under surface of the stem of some liverworts
- amphithalamus — (in an ancient Greek house) a room adjoining the thalamus.
- amphitrichous — having a single flagellum at each end.
- 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.
- amygdalaceous — similar to or derived from the almond
- anachronously — in an anachronous manner
- 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.