13-letter words containing a, e, o
- allelomorphic — relating to alleles
- allhallowtide — the season of All Saints' Day (Allhallows)
- alliterations — Plural form of alliteration.
- allophanamide — biuret.
- allowable cut — the amount of a natural resource, as grain or oil, that may be harvested or taken from the earth within a specified period, as limited by law for conservation.
- allowableness — the quality of being allowable
- alluvial cone — a steep, narrow, cone-shaped alluvial fan formed where a swift stream suddenly slows down, as where an upland stream emerges abruptly into a level plain
- allylthiourea — thiosinamine.
- almond-shaped — oval
- along the way — If something happens on the way or along the way, it happens during the course of a particular event or process.
- alongshoreman — a person employed to load and unload ships
- alpha blocker — any of various substances that interfere with the action of the alpha receptors.
- alpha-blocker — any of a class of drugs that prevent the stimulation of alpha adrenoceptors, a type of receptor in the sympathetic nervous system, by adrenaline and noradrenaline and that therefore cause widening of blood vessels: used in the treatment of high blood pressure and prostatic hyperplasia
- alphabet code — a list of easily distinguishable words, each representing a letter of the alphabet, used in radio and telephonic communications.
- 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
- alsike clover — a European clover, Trifolium hybridum, having pink flowers, grown in the U.S. for forage.
- alstroemerias — Plural form of alstroemeria.
- altered chord — a chord in which one or more notes are chromatically changed by the introduction of accidentals
- 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
- 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.
- alveolar arch — the part of the upper or lower jawbone in which the teeth are set.
- amarantaceous — amaranthine
- ambidexterous — ambidextrous
- ambient noise — the level of the total noise in an area
- ambiguousness — open to or having several possible meanings or interpretations; equivocal: an ambiguous answer.
- ambitiousness — having ambition; eagerly desirous of achieving or obtaining success, power, wealth, a specific goal, etc.: ambitious students.
- 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
- american aloe — century plant
- american bond — a brickwork bond having a course of headers between five or six courses of stretchers.
- american fork — a town in central Utah.
- aminobenzoate — (organic chemistry) Any salt or ester of aminobenzoic acid.
- aminophylline — a derivative of theophylline that relaxes smooth muscle and is used mainly to dilate the airways in the treatment of asthma and emphysema
- aminothiazole — (chemistry) A heterocyclic amine, the starting point for synthesis of many compounds, sometimes used as a thyroid inhibitor in the treatment of hyperthyroidism.
- aminotriazole — a white, crystalline, soluble powder, NHNC(NH2)NCH, used for killing weeds or other undesired vegetation: a carcinogen
- ammonia water — ammonia (def 2).
- amniocenteses — Plural form of amniocentesis.
- amniocentesis — If a pregnant woman has an amniocentesis, fluid is removed from her womb in order to check that her unborn baby is not affected by certain genetic disorders.
- amor asteroid — one of a small group of asteroids whose orbits approach but do not cross that of the earth: named after the first such asteroid discovered (1932).
- amorphousness — lacking definite form; having no specific shape; formless: the amorphous clouds.
- amphibologies — Plural form of amphibology.
- amphictyonies — Plural form of amphictyony.
- amphiprostyle — (esp of a classical temple) having a set of columns at both ends but not at the sides
- amphotericins — Plural form of amphotericin.
- amygdalaceous — similar to or derived from the almond
- anaerobically — (of an organism or tissue) living in the absence of air or free oxygen.