13-letter words containing a, u, t, o
- 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
- alumosilicate — (inorganic chemistry) The anion [AlSiO4]-1.
- amarantaceous — amaranthine
- ambidexterous — ambidextrous
- ambimoustrous — able to use a computer mouse proficiently with either hand
- ambitiousness — having ambition; eagerly desirous of achieving or obtaining success, power, wealth, a specific goal, etc.: ambitious students.
- ammonium salt — any salt containing the NH 4 + ion, formed by the neutralization of ammonium hydroxide by an acid.
- amphitrichous — having a single flagellum at each end.
- anfractuosity — the condition or quality of being anfractuous
- 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
- 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
- annunciations — Plural form of annunciation.
- anonymous ftp — (networking) An interactive service provided by many Internet hosts allowing any user to transfer documents, files, programs, and other archived data using File Transfer Protocol. The user logs in using the special user name "ftp" or "anonymous" and his e-mail address as password. He then has access to a special directory hierarchy containing the publically accessible files, typically in a subdirectory called "pub". This is usually a separate area from files used by local users. A reference like ftp: euagate.eua.ericsson.se /pub/eua/erlang/info means that files are available by anonymous FTP from the host called euagate.eua.ericsson.se in the directory (or file) /pub/eua/erlang/info. Sometimes the hostname will be followed by an Internet address in parentheses. The directory will usually be given as a path relative to the anonymous FTP login directory. A reference to a file available by FTP may also be in the form of a URL starting "ftp:". See also Archie, archive site, EFS, FTP by mail, web.
- another-guess — of another kind.
- antenniferous — having antennae
- anthraquinone — a yellow crystalline solid used in the manufacture of dyes, esp anthraquinone dyes, which have excellent colour properties. Formula: C6H4(CO)2C6H4
- anti-european — opposed to the European Union or to political union of the countries of Europe
- anti-populism — (lowercase) any of various, often antiestablishment or anti-intellectual political movements or philosophies that offer unorthodox solutions or policies and appeal to the common person rather than according with traditional party or partisan ideologies.
- antiauthority — Opposed to authority.
- anticlinorium — a vast elongated anticline with its strata further folded into anticlines and synclines
- anticoagulant — acting to prevent or impair coagulation, esp of blood
- anticommunism — the opposition to communism
- anticommunist — (initial capital letter) a member of the Communist Party or movement.
- antievolution — a system of thought which argues against the biological theory of evolution
- antigonus (i) — 382-301 b.c.; Macedonian general under Alexander the Great: king of Macedonia (306-301)
- antineutrinos — Plural form of antineutrino.
- antiochus iii — known as Antiochus the Great. 242–187 bc, king of Syria (223–187), who greatly extended the Seleucid empire but was forced (190) to surrender most of Asia Minor to the Romans
- antipollution — (of measures, policies, etc) designed to combat pollution and its causes
- antireligious — opposed to religious ideas, beliefs, and organizations
- antiscorbutic — preventing or curing scurvy
- antisudorific — an antiperspirant.
- apatosauruses — Plural form of apatosaur.
- aphanipterous — of or relating to the wingless insects of the order Aphaniptera
- appeals court — An appeals court is the same as an appellate court.
- appoggiaturas — Plural form of appoggiatura.
- appropinquate — to approach
- appropinquity — nearness
- arboriculture — the cultivation of trees or shrubs, esp for the production of timber
- archeptolemus — (in the Iliad) the son of Iphitus who served as a charioteer for Hector.
- argentiferous — containing or bearing silver
- argumentation — Argumentation is the process of arguing in an organized or logical way, for example in philosophy.
- armour-plated — An armour-plated vehicle or building has a hard metal covering in order to protect it from gunfire and other missiles.
- arteriovenous — of, relating to, or affecting an artery and a vein
- articulations — Plural form of articulation.
- as all getout — Commerce. the break-even point.
- asset account — An asset account is an account that records the assets owned by a company.
- assumptionist — Augustinian of the Assumption.
- astronautical — of or relating to astronautics or astronauts.
- at a discount — below the regular price