15-letter words containing a, l, o, u, i
- auxiliary rotor — the tail rotor of a helicopter, used for directional and rotary control
- ball ammunition — live small-arms ammunition
- barium chloride — a poisonous compound, BaCl2, consisting of flat white crystals that are soluble in water: it is used to treat water, metals, leather, etc.
- bernoulli trial — one of a sequence of independent experiments each of which has the same probability of success, such as successive throws of a die, the outcome of which is described by a binomial distribution
- bioaccumulation — the process in which industrial waste, toxic chemicals, etc. gradually accumulate in living tissue
- bishop auckland — a town in N England, in central Durham: seat of the bishops of Durham since the 12th century: light industries. Pop: 24 764 (2001)
- bituminous coal — a soft black coal, rich in volatile hydrocarbons, that burns with a smoky yellow flame. Fixed carbon content: 46–86 per cent; calorific value: 1.93 × 107 – 3.63 × 107 J/kg
- black guillemot — a common guillemot, Cepphus grylle: its summer plumage is black with white wing patches and its winter plumage white with greyish wings
- black mountains — a mountain range running from N Monmouthshire and SE Powys (Wales) to SW Herefordshire (England). Highest peak: Waun Fach, 811 m (2660 ft)
- bouillotte lamp — a table lamp of the 18th century, having two or three adjustable candle brackets and a common shade sliding on a central shaft.
- branchial pouch — one of a series of rudimentary outcroppings of the inner pharyngeal wall, corresponding to the branchial grooves on the surface.
- breaking plough — a plough with a long shallow mouldboard for turning virgin land or sod land
- bronchial tubes — the bronchi or their smaller divisions
- buffalo soldier — (formerly, especially among American Indians) a black soldier.
- bulimia nervosa — a disorder characterized by compulsive overeating followed by vomiting: sometimes associated with anxiety about gaining weight
- calcium blocker — any of a group of drugs that prevent the influx of calcium into excitable tissues such as smooth muscle of the heart or arterioles, used in the treatment of angina, hypertension, and certain arrhythmias.
- calcium oxalate — a white, crystalline powder, CaC 2 O 4 , insoluble in water, used in making oxalic acid.
- california gull — a large gull, Larus californicus, of the western U.S.
- calorific value — the quantity of heat produced by the complete combustion of a given mass of a fuel, usually expressed in joules per kilogram
- calydonian hunt — the pursuit by Meleager, Atalanta, and others of a savage boar (Calydonian boar) sent by Artemis to lay waste to Calydon.
- capital account — A country's capital account is the part of its balance of payments that is concerned with the movement of capital.
- capitulationism — advocacy or approval of capitulation.
- capitulationist — advocacy or approval of capitulation.
- caprifoliaceous — of, relating to, or belonging to the Caprifoliaceae, a family of N temperate shrubs, small trees, and climbers including honeysuckle, elder, and guelder-rose
- cardinal humour — any of the four bodily fluids (blood, phlegm, choler or yellow bile, melancholy or black bile) formerly thought to determine emotional and physical disposition
- cardiopulmonary — of, relating to, or affecting the heart and lungs
- catholic church — any of several Churches claiming to have maintained continuity with the ancient and undivided Church
- cauliflower ear — permanent swelling and distortion of the external ear as the result of ruptures of the blood vessels: usually caused by blows received in boxing
- cauliflowerette — a single floret from the head of a cauliflower.
- caustic alcohol — sodium ethylate.
- centrifugal box — a revolving chamber, used in the spinning of manufactured filaments, in which the plastic fibers, subjected to centrifugal force, are slightly twisted and emerge in the form of yarn wound into the shape of a hollow cylinder.
- chartophylacium — (in a medieval church) a place for the keeping of records and documents.
- chaulmoogra oil — a brownish-yellow oil or soft fat expressed from the seeds of a chaulmoogra tree, used formerly in the treatment of leprosy and skin diseases.
- child abduction — the crime of removing a child from its rightful home
- chromium-plated — having been plated with chromium
- church slavonic — Old Church Slavonic, esp as preserved in the liturgical use of the Orthodox church
- circularisation — Alternative spelling of circularization.
- circularization — to circulate (a letter, memorandum, etc.).
- circumvallation — surrounded by or as if by a rampart.
- city councilman — a member of a city council
- ciudad trujillo — former name (1936–61) of Santo Domingo.
- class inclusion — the relation between two classes in which all members of one class are included in the other, as in the proposition “All humans are animals.”.
- class-conscious — Someone who is class-conscious is very aware of the differences between the various classes of people in society, and often has a strong feeling of belonging to a particular class.
- claustrophobics — Plural form of claustrophobic.
- cleistogamously — in a cleistogamous manner
- cocktail lounge — A cocktail lounge is a room in a hotel, restaurant, or club where you can buy alcoholic drinks.
- colouristically — in a colouristic manner
- colourpoint cat — a cat with increased pigmentation of cooler points of the body, such as ears, feet, tail, nose, and scrotum (in males)
- communal aerial — a television or radio receiving aerial from which received signals are distributed by cable to several outlets
- communicability — capable of being easily communicated or transmitted: communicable information; a communicable disease.