13-letter words containing a, p, o
- alphabet soup — a confusing series of acronyms or abbreviations
- alphabetiform — having similarities to letters of the alphabet
- 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
- 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
- aluminography — algraphy.
- aluminum soap — any of the salts formed by higher carboxylic acids and aluminum, as aluminum oleate, aluminum palmitate, and aluminum stearate.
- alymphoplasia — (medicine) aplasia of the lymphoid tissue.
- amazon parrot — any of several tropical American green parrots of the genus Amazona, popular as pets.
- ambroise pare — Ambroise [ahn-brwaz] /ɑ̃ˈbrwaz/ (Show IPA), 1510–90, French surgeon.
- amenhotep iii — Greek name Amenophis. ?1411–?1375 bc, Egyptian pharaoh who expanded Egypt's influence by peaceful diplomacy and erected many famous buildings
- aminophylline — a derivative of theophylline that relaxes smooth muscle and is used mainly to dilate the airways in the treatment of asthma and emphysema
- amorphousness — lacking definite form; having no specific shape; formless: the amorphous clouds.
- amphibologies — Plural form of amphibology.
- amphictyonies — Plural form of amphictyony.
- amphidiploidy — (of an organism or cell) the condition of being amphidiploid ie having a diploid set of chromosomes from each parent
- amphiprostyle — (esp of a classical temple) having a set of columns at both ends but not at the sides
- amphistomatal — (of a leaf) having stomata on both surfaces
- amphitrichous — having a single flagellum at each end.
- amphitryon 38 — a play (1938) by Jean Giraudoux.
- amphotericins — Plural form of amphotericin.
- amplification — the act or result of amplifying
- amplificatory — of the nature of enlargement or extension, as of a statement, narrative, etc.
- anaphorically — referring back to or substituting for a preceding word or group of words: anaphoric reference.
- anaphrodisiac — tending to lessen sexual desire
- anaphylactoid — Of, pertaining to, or resembling anaphylaxis.
- anchor pocket — a recess in the bow of a vessel, for housing a stockless anchor.
- anchorpersons — Plural form of anchorperson.
- anencephalous — congenital absence of part or all of the brain.
- angioplasties — Plural form of angioplasty.
- angiospermous — of or relating to an angiosperm; having enclosed seeds.
- anise camphor — anethole.
- anisometropia — an imbalance in the power of the two eyes to refract light
- anisometropic — relating to anisometropia
- anisophyllous — having leaves of different shapes or sizes.
- 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
- 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 place — the other House of Parliament (used in the House of Commons to refer to the House of Lords and vice versa)
- anthophyllite — a black or greenish-black mineral from the hornblende group, found in igneous and metamorphic rocks
- anthropogenic — relating to anthropogenesis
- anthropolatry — the worship of a human as a god
- anthropologic — the science that deals with the origins, physical and cultural development, biological characteristics, and social customs and beliefs of humankind.
- anthropometer — an instrument that consists of a calibrated, vertical rod to which are attached two horizontal arms, one fixed and one movable, for measuring the human trunk and limbs.
- anthropometry — the comparative study of sizes and proportions of the human body
- anthropopathy — the attribution of human passions, etc, to a deity, object, etc
- anthropophagi — cannibals
- anthropophagy — cannibalism
- anthropophobe — One who dislikes human beings.
- anthropophyte — a plant species accidentally introduced during the cultivation of another
- anthroposcopy — physiognomy (def 2).
- anthroposophy — the spiritual and mystical teachings of Rudolph Steiner, based on the belief that creative activities such as myth making, which formed a part of life in earlier times, are psychologically valuable, esp for educational and therapeutic purposes