13-letter words containing n, i
- alpha orionis — Betelgeuse
- alpha testing — (programming) Testing of software at the developer's site by the customer. The stage before beta testing.
- alphabetarian — a person learning, or studying, the alphabet
- alphabetizing — Present participle of alphabetize.
- alphanumerics — Plural form of alphanumeric.
- alpine azalea — a low, branching shrub, Loiseleuria procumbens, of northern regions, having evergreen leaves and clusters of white or pink flowers.
- 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
- alpine garden — a rock garden.
- alpine tundra — a tundra that is treeless because of high elevation rather than high latitude.
- 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.
- aluminiferous — containing or yielding aluminium or alumina
- aluminography — algraphy.
- 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
- aluminum book — (publication) Due to a technical screwup some printings of the second edition are actually what the author calls "yucky green". See also book titles.
- aluminum foil — silver paper
- aluminum soap — any of the salts formed by higher carboxylic acids and aluminum, as aluminum oleate, aluminum palmitate, and aluminum stearate.
- amalgamations — Plural form of amalgamation.
- amateur night — an entertainment featuring amateur performers, often in competition for prizes.
- ambient music — a style of popular music which aims to create a relaxing atmosphere
- 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.
- 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 curl — a breed of slender cat with curled-back ears and a plumed tail
- american fork — a town in central Utah.
- american plan — a hotel rate in which the charge includes meals
- american wake — an all-night farewell party for a person about to emigrate to America
- amino radical — the univalent group, −NH 2 .
- aminoaciduria — the presence of amino acids in urine
- 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
- amitriptyline — a tricyclic antidepressant drug. Formula: C20H23N
- amitryptyline — a drug with several uses, most commonly prescribed to treat depression
- ammonia clock — an atomic clock based on the frequency of inversion of the ammonia molecule
- ammonia water — ammonia (def 2).
- ammonium salt — any salt containing the NH 4 + ion, formed by the neutralization of ammonium hydroxide by an acid.
- 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.
- amphictyonies — Plural form of amphictyony.
- amphisbaenian — any of a legless, burrowing suborder (Amphisbaenia) of tropical reptiles (order Squamata) with a head and tail that look very much alike
- amphitryon 38 — a play (1938) by Jean Giraudoux.
- amphotericins — Plural form of amphotericin.
- amplification — the act or result of amplifying