15-letter words containing o, h
- black horehound — a hairy unpleasant-smelling chiefly Mediterranean plant, Ballota nigra, having clusters of purple flowers: family Lamiaceae (labiates)
- blagoveshchensk — a city and port in E Russia, in Siberia on the Amur River. Pop: 222 000 (2005 est)
- blasphemousness — the quality of being blasphemous
- blenheim orange — a type of apple tree bearing gold-coloured apples
- bloody butchers — a hardy plant, Trillium sessile, common from New York to Georgia and westward, having stalkless, purple or green flowers.
- blotch printing — a fabric-printing method in which the ground color is transferred from the cylinder and the motif retains the original hue of the cloth.
- blow one's horn — to boast about oneself; brag
- board of health — an agency with responsibility for health in state, country, etc
- boarding school — A boarding school is a school which some or all of the pupils live in during the school term. Compare day school.
- boating holiday — a holiday spent sailing or travelling in a canal boat, cruiser, etc
- bohemia-moravia — a former German protectorate including Bohemia and Moravia, 1939–45.
- 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
- bonheur-du-jour — a delicate fall-front desk of the late 18th and early 19th centuries.
- book of changes — an ancient Chinese book of divination, in which 64 pairs of trigrams are shown with various interpretations.
- booster cushion — an extra seat or cushion placed on an existing seat for a child to sit on in a car
- borough council — a local government body elected by a borough
- borough-english — (until 1925) a custom in certain English boroughs whereby the youngest son inherited land to the exclusion of his older brothers
- borscht circuit — summer resort hotels in the Catskills and White Mountains, where entertainment is provided for the guests
- boustrophedonic — of or relating to lines written in opposite directions
- box chronometer — a ship's chronometer, supported on gimbals in a wooden box
- box huckleberry — a nearly prostrate evergreen huckleberry shrub, Gaylussacia brachycera, of central to eastern North America, having short clusters of white or pink flowers and blue fruit.
- box the compass — to name the compass points in order
- boys' night out — an evening spent outside of the home by a group of men
- brachiocephalic — of, relating to, or supplying the arm and head
- 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
- brachystomatous — having a short proboscis, as certain insects.
- branchial pouch — one of a series of rudimentary outcroppings of the inner pharyngeal wall, corresponding to the branchial grooves on the surface.
- branchiostegous — branchiostegal.
- breach of faith — a violation of good faith, confidence, or trust; betrayal: To abandon your friends now would be a breach of faith.
- breach of trust — a violation of duty by a trustee or any other person in a fiduciary position
- bread and honey — money
- break the mould — If you say that someone breaks the mould, you mean that they do completely different things from what has been done before or from what is usually done.
- breaking plough — a plough with a long shallow mouldboard for turning virgin land or sod land
- bridge of sighs — a covered 16th-century bridge in Venice, between the Doges' Palace and the prisons, through which prisoners were formerly led to trial or execution
- 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)
- bristol fashion — clean and neat, with newly painted and scrubbed surfaces, brass polished, etc
- british council — an organization founded (1934) to extend the influence of British culture and education throughout the world
- british telecom — the popular name for British Telecommunications Group plc, the dominant fixed line telecommunications and broadband internet provider in the United Kingdom
- broca's aphasia — a type of aphasia caused by a lesion in Broca's area of the brain, characterized by misarticulated speech and lack of grammatical morphemes.
- 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
- brother-in-arms — a fellow soldier or comrade in a shared struggle
- brown-tail moth — a white moth, Nygmia phaerrhoea, having a brown tuft at the end of the abdomen, the larvae of which feed on the foliage of various shade and fruit trees.
- bughouse square — Informal. any intersection or park mall in a big city where political zealots, agitators, folk evangelists, etc., congregate to argue and make soapbox speeches.
- bullnose header — bull header (def 1).
- bullnose-header — Also called bullnose header. a brick having one of the edges across its width rounded for laying as a header in a sill or the like.
- bullock's heart — the large, edible fruit of a tropical American tree, Annona reticulata.
- bullock's-heart — the large, edible fruit of a tropical American tree, Annona reticulata.