13-letter words containing b, h, o, r
- bishop's ring — a reddish-brown corona occasionally seen around the sun, caused by volcanic dust in the atmosphere.
- black hickory — a species of smooth-barked hickory, Carya tomentosa, with fragrant foliage that turns bright yellow in autumn
- blepharoplast — a cylindrical cytoplasmic body in protozoa
- blepharospasm — spasm of the muscle of the eyelids, causing the eyes to shut tightly, either as a response to painful stimuli or occurring as a form of dystonia
- blood brother — A man's blood brother is a man he has sworn to treat as a brother, often in a ceremony which involves mixing a small amount of their blood.
- blue rockfish — a bluish-black rockfish, Sebastodes mystinus, inhabiting Pacific coastal waters of North America.
- boardinghouse — a private house in which accommodation and meals are provided for paying guests
- body snatcher — (formerly) a person who robbed graves and sold the corpses for dissection
- bohr magneton — a unit that is used to indicate the magnetic moment of the electron structure in an atom, equal to 9.27 × 10 −21 erg/gauss.
- bolt up right — a movable bar or rod that when slid into a socket fastens a door, gate, etc.
- bone-crushing — powerful or constricting enough to crush one's bones: a bone-crushing handshake.
- bonfire night — Bonfire Night is the popular name for Guy Fawkes Night.
- book of hours — a book used esp in monasteries during the Middle Ages that contained the prayers and offices of the canonical hours
- boron hydride — borane.
- bosch process — an industrial process for manufacturing hydrogen by the catalytic reduction of steam with carbon monoxide
- bottle-washer — a menial or factotum
- bounty hunter — A bounty hunter is someone who tries to find or kill someone in order to get the reward that has been offered.
- boustrophedon — having alternate lines written from right to left and from left to right
- boutros-ghali — ˈBoutros (ˈbutroʊs ) ; bo̅oˈtrōs) 1922- ; Egypt. diplomat: secretary-general of the United Nations (1992-96)
- box stretcher — a heavy rectangular stretcher connecting successive legs of a table, chair, etc.
- brachiosaurus — a dinosaur of the genus Brachiosaurus, up to 30 metres long: the largest land animal ever known
- brachypterous — having very short or incompletely developed wings
- branch office — the local branch of a bank, shop, or other business
- break through — If you break through a barrier, you succeed in forcing your way through it.
- breakthroughs — a military movement or advance all the way through and beyond an enemy's front-line defense.
- breech-loader — a firearm that is loaded at the breech
- breeches buoy — a ring-shaped life buoy with a support in the form of a pair of short breeches, in which a person is suspended for safe transfer from a ship
- breechloading — loaded at the breech.
- breidha fjord — an inlet of Denmark Strait on the NW coast of Iceland.
- bridal shower — a party, held for a woman before her wedding, to which her friends bring gifts
- bridging shot — a shot inserted in a film to indicate the passage of time between two scenes, as of a series of newspaper headlines or calendar pages being torn off.
- brigham young — Andrew (Jackson, Jr.) born 1932, U.S. clergyman, civil-rights leader, politician, and diplomat: mayor of Atlanta, Georgia, 1981–89.
- bring home to — to convince of
- broad hatchet — a hatchet with a broad cutting edge.
- broca-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.
- broiler house — a building in which broiler chickens are reared in confined conditions
- brokenhearted — Someone who is brokenhearted is very sad and upset because they have had a serious disappointment.
- bronchiolitis — a condition in which the small airways in the lungs become inflamed by a virus. It is most common in infants, who become breathless in severe cases. Recurrent attacks may lead to asthma
- bronchography — radiography of the bronchial tubes after the introduction of a radiopaque medium into the bronchi
- bronze whaler — a shark, Carcharhinus brachyurus, of southern Australian waters, having a bronze-coloured back
- brotherliness — of, like, or befitting a brother; affectionate and loyal; fraternal: brotherly love.
- brown hickory — a North American hickory tree, Carya glabra
- bulbourethral — of or relating to the rounded mass of tissue surrounding the urethra at the root of the penis.
- buprenorphine — an opiate used medicinally as a powerful analgesic
- busheled iron — heterogeneous iron made from scrap iron and steel.
- butcher block — designating or of a thick slab made by gluing together strips of hardwood, as maple or oak, used for counter and table tops, etc.
- butcher's boy — a boy doing deliveries for a butcher and perhaps also learning the butchery trade, esp in the past
- butyrophenone — a drug used to treat psychiatric disorders
- cancerophobia — a morbid dread of being afflicted by cancer
- carbohydrates — foods which contain carbohydrate