13-letter words containing o, s, l
- allowableness — the quality of being allowable
- almond-shaped — oval
- alongshoreman — a person employed to load and unload ships
- alpha orionis — Betelgeuse
- alpha scorpii — Antares
- alphabet soup — a confusing series of acronyms or abbreviations
- alsike clover — a European clover, Trifolium hybridum, having pink flowers, grown in the U.S. for forage.
- alstroemerias — Plural form of alstroemeria.
- 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.
- alymphoplasia — (medicine) aplasia of the lymphoid tissue.
- amalgamations — Plural form of amalgamation.
- ambassadorial — Ambassadorial means belonging or relating to an ambassador.
- ammonium salt — any salt containing the NH 4 + ion, formed by the neutralization of ammonium hydroxide by an acid.
- amphibologies — Plural form of amphibology.
- 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
- amygdalaceous — similar to or derived from the almond
- anachronously — in an anachronous manner
- analogousness — The quality of being analogous.
- andersonville — town in SW central Ga.: site of a Confederate prison in the Civil War
- androgynously — In an androgynous manner.
- anencephalous — congenital absence of part or all of the brain.
- angioplasties — Plural form of angioplasty.
- anglicisation — The process by which something or someone (usually a word) is made more English. Usually applied to language or culture.
- 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.
- ankyloglossia — tongue-tie.
- anomalistical — relating to a planet's angular distance from its last perihelion or orbital point nearest to the sun
- anti-politics — the science or art of political government.
- 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.
- anticlockwise — If something is moving anticlockwise, it is moving in the opposite direction to the direction in which the hands of a clock move.
- anticollision — intended to avoid collisions
- antielectrons — Plural form of antielectron.
- antiformalist — opposed to formalism
- antipersonnel — (of weapons, etc) designed to cause casualties to personnel rather than to destroy equipment or defences
- antireligious — opposed to religious ideas, beliefs, and organizations
- antiselection — adverse selection.
- antisocialism — the quality of being antisocial
- antisocialist — a person opposed to socialism
- antisociality — the quality of being antisocial
- aphrodisiacal — having an aphrodisiac quality
- apicomplexans — Plural form of apicomplexan.
- apocryphalist — A member of the group who supported the inclusion of the Apocrypha in the Bible.
- apologeticism — An instance of the use of apologetics.
- apostle plant — a plant, Neomarica northiana, of the iris family, native to Brazil, having large, fragrant white and violet flowers, and often cultivated as a houseplant.
- apostle spoon — a silver spoon with a figure of one of the Apostles on the handle
- apostolic age — the earliest period of Christianity, lasting through the death of the last apostle.