13-letter words containing l, a, t, r
- air pollution — contamination of the atmosphere
- air-lift pump — a pump that pumps liquid by injecting air into the lower end of an open pipe immersed in the liquid: often used in boreholes
- airline pilot — a person who flies planes as a profession and works for a commercial airline
- airplane turn — a midair turn made in the middle of a jump.
- airport novel — People sometimes refer to long novels such as thrillers and romances that are written in a popular style as airport novels.
- albert b fall — Albert Bacon, 1861–1944, U.S. politician: senator 1912–21; secretary of the Interior 1921–23; convicted in Teapot Dome scandal.
- albert edward — a mountain in SE New Guinea, in the Owen Stanley Range. Height: 3993 m (13 100 ft)
- albert nyanza — Albert3
- albertosaurus — A giant fierce carnivorous tyrannosaurus-like dinosaur, of gemus Albertosaurus, discovered in Alberta, Canada.
- alcoholometer — an instrument, such as a specially calibrated hydrometer, for determining the percentage of alcohol in a liquid
- alcoholometry — the process of measuring the concentration of alcohol in a liquid, such as in blood or a liquor
- aldosteronism — high blood pressure caused by excess aldosterone in the blood and urine
- alectryomancy — an ancient form of divination, using a rooster to select grains of food placed on letters of the alphabet.
- alfred austin — Alfred, 1835–1913, English poet: poet laureate 1896–1913.
- all over with — above in place or position: the roof over one's head.
- all-important — crucial; vital
- allergenicity — causing allergic sensitization.
- alligator gar — a large, heavily scaled fish, Lepisosteus spatula, with an elongated body and long snout, found mainly in shallow weedy fresh water in the southeastern U.S.
- alligatorfish — a slender marine fish, Aspidophoroides monopterygius, of Atlantic seas, having overlapping plates covering the body.
- alliterations — Plural form of alliteration.
- allochromatic — Physical Chemistry. pertaining to or having photochemical properties resulting from an impurity or from exposure to radiation.
- allotriomorph — (geology) A mineral that did not develop its otherwise typical external crystal form because of late crystallization between earlier formed crystals, typical of matrix minerals in rapidly crystallizing volcanic lavas and shallow igneous intrusions.
- allotriophagy — (rare) Having food cravings that are different from the expected or the norm.
- allylthiourea — thiosinamine.
- alpha emitter — a radioactive isotope that emits alpha particles
- alphabetarian — a person learning, or studying, the alphabet
- alphabetiform — having similarities to letters of the alphabet
- alpine tundra — a tundra that is treeless because of high elevation rather than high latitude.
- alstroemerias — Plural form of alstroemeria.
- alterableness — The state or quality of being alterable.
- altered chord — a chord in which one or more notes are chromatically changed by the introduction of accidentals
- alternateness — The state or quality of being alternate.
- alternatingly — to interchange repeatedly and regularly with one another in time or place; rotate (usually followed by with): Day alternates with night.
- alternatively — You use alternatively to introduce a suggestion or to mention something different to what has just been stated.
- alternativism — The rejection of a social normality through the pursuit of alternatives.
- alternativity — A characteristic of something having alternative connotations, akin to the representation of choice between two or more possibilities.
- 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
- 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
- aminotriazole — a white, crystalline, soluble powder, NHNC(NH2)NCH, used for killing weeds or other undesired vegetation: a carcinogen
- amitriptyline — a tricyclic antidepressant drug. Formula: C20H23N
- amitryptyline — a drug with several uses, most commonly prescribed to treat depression
- amphiprostyle — (esp of a classical temple) having a set of columns at both ends but not at the sides
- amphitheatral — relating to an amphitheatre, taking place in an amphitheatre
- amplificatory — of the nature of enlargement or extension, as of a statement, narrative, etc.
- angelica tree — Hercules'-club
- angle bracket — either of a pair of brackets having the shapes < and >
- animal rights — People who are concerned with animal rights believe very strongly that animals should not be exploited or harmed by humans.
- animal starch — glycogen.
- 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
- another place — the other House of Parliament (used in the House of Commons to refer to the House of Lords and vice versa)