13-letter words containing a, u, s, o
- 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.
- amorphousness — lacking definite form; having no specific shape; formless: the amorphous clouds.
- amphitrichous — having a single flagellum at each end.
- amygdalaceous — similar to or derived from the almond
- anachronously — in an anachronous manner
- analogousness — The quality of being analogous.
- 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.
- 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.
- anonymousness — without any name acknowledged, as that of author, contributor, or the like: an anonymous letter to the editor; an anonymous donation.
- another-guess — of another kind.
- antenniferous — having antennae
- 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.
- anticommunism — the opposition to communism
- anticommunist — (initial capital letter) a member of the Communist Party or movement.
- 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
- 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.
- aqueous humor — a watery fluid in the space between the cornea and the lens of the eye
- arachnivorous — Spider-eating.
- archeptolemus — (in the Iliad) the son of Iphitus who served as a charioteer for Hector.
- argentiferous — containing or bearing silver
- argilliferous — containing or yielding clay
- arsenous acid — a toxic white powder, As2O3, used to make other arsenic compounds, insecticides, and preservatives; white arsenic
- arteriovenous — of, relating to, or affecting an artery and a vein
- articulations — Plural form of articulation.
- arundinaceous — resembling a reed
- as all getout — Commerce. the break-even point.
- as you please — You can use as you please in expressions such as bold as you please or casually as you please or charming as you please in order to emphasize what you are saying.
- asexual spore — a spore that is the result of asexual reproduction
- asset account — An asset account is an account that records the assets owned by a company.
- assiduousness — constant; unremitting: assiduous reading.
- assumptionist — Augustinian of the Assumption.
- astronautical — of or relating to astronautics or astronauts.
- at a discount — below the regular price