15-letter words containing a, e, o, n, i
- bladder campion — a European caryophyllaceous plant, Silene vulgaris, having white flowers with an inflated calyx
- blast injection — the injection of liquid fuel directly into the cylinder of an internal-combustion engine using a blast of high-pressure air to atomize the spray of fuel
- blasting powder — a form of gunpowder made with sodium nitrate instead of saltpeter, used chiefly for blasting rock, ore, etc.
- blenheim orange — a type of apple tree bearing gold-coloured apples
- body mass index — A person's body mass index is a measurement that represents the relationship between their weight and their height.
- bohemian forest — a mountain range between the SW Czech Republic and SE Germany. Highest peak: Arber, 1457 m (4780 ft)
- boil-in-the-bag — (of food) able to be boiled in a sealed bag until ready to eat
- borderline case — a person or thing that is not clearly classifiable as something
- boston marriage — (especially in 19th-century New England) an intimate friendship between two women often maintaining a household together.
- bowel complaint — bowel disease or condition
- brachistochrone — the curve between two points through which a body moves under the force of gravity in a shorter time than for any other curve; the path of quickest descent
- branchiostegous — branchiostegal.
- brand extension — the practice of using a well-known brand name to promote new products or services in unrelated fields
- break-in period — a period during which certain restrictions or moderation in operating should be followed, as the avoidance of high speed, rapid acceleration, or severe braking for a new automobile.
- breakeven point — a point at which the total revenue and total cost are equal
- breaking plough — a plough with a long shallow mouldboard for turning virgin land or sod land
- breeding season — the time of year during which animals breed
- bring to a head — to bring or be brought to a crisis
- bristol channel — an inlet of the Atlantic, between S Wales and SW England, merging into the Severn estuary. Length: about 137 km (85 miles)
- britneyfication — the effect on clothes and fashions of following the revealing styles favoured by the US pop singer Britney Spears (born 1981)
- brompheniramine — a substance, C 16 H 19 BrN 2 , used as an antihistamine in the management of various allergies, as hay fever.
- bronchial tubes — the bronchi or their smaller divisions
- bronze diabetes — hemochromatosis.
- brother-in-arms — a fellow soldier or comrade in a shared struggle
- bulimia nervosa — a disorder characterized by compulsive overeating followed by vomiting: sometimes associated with anxiety about gaining weight
- bureau of mines — a division of the Department of the Interior, created in 1910, that studies the nation's mineral resources and inspects mines.
- cacodaemoniacal — Demonic; evil.
- cadmean victory — a victory won with great losses to the victors
- caernarvonshire — (until 1974) a county of NW Wales, now part of Gwynedd
- cairngorm-stone — smoky quartz.
- caisson disease — decompression sickness
- calamine lotion — a soothing lotion containing calamine
- calendarization — the process of calendarizing
- california rose — a cultivated variety of a bindweed, Calystegia hederacea, having showy, double, rose-colored flowers.
- call into being — to create
- calvin coolidge — Calvin, 1872–1933, 30th president of the U.S. 1923–29.
- campaign worker — a person who carries out duties for a political candidate or party, esp before an election
- canadian forces — the official name for the military forces of Canada
- canadian legion — a national social club for veterans of the Canadian armed services.
- cancel a policy — If you cancel a policy, you terminate a contract of insurance.
- canisterization — the process of putting (something) into a canister or canisters
- capital offence — a crime for which the death penalty is used
- carbon monoxide — Carbon monoxide is a poisonous gas that is produced especially by the engines of vehicles.
- carcinogenicity — any substance or agent that tends to produce a cancer.
- cardinal flower — a campanulaceous plant, Lobelia cardinalis of E North America, that has brilliant scarlet, pink, or white flowers
- cardinal vowels — a set of theoretical vowel sounds, based on the shape of the mouth needed to articulate them, that can be used to classify the vowel sounds of any speaker in any language
- carnivorousness — flesh-eating: A dog is a carnivorous animal.
- cartesian doubt — willful suspension of all interpretations of experience that are not absolutely certain: used as a method of deriving, by elimination of such uncertainties, axioms upon which to base theories.
- cartier-bresson — Henri (ɑ̃ri). 1908–2004, French photographer
- casement-window — a window sash opening on hinges that are generally attached to the upright side of its frame.