13-letter words starting with bo
- book of books — the Bible.
- book of hours — a book used esp in monasteries during the Middle Ages that contained the prayers and offices of the canonical hours
- book of kells — Book of Kells.
- book scorpion — any of various small arachnids of the order Pseudoscorpionida (false scorpions), esp Chelifer cancroides, which are sometimes found in old books, etc
- book-learning — knowledge acquired by reading books, as distinguished from that obtained through observation and experience.
- booking agent — an agent who makes bookings, as reservations for travel or the theater or engagements for performers, for clients.
- booking clerk — A booking clerk is a person who sells tickets, especially in a railway station.
- boole, george — George Boole
- boolean logic — (logic) A logic based on Boolean algebra.
- boom operator — a person who operates a boom
- boom-and-bust — characteristic of a period of economic prosperity followed by a depression.
- boomerang kid — a young adult who, after having lived on his or her own for a time, returns to live in the parental home, usually due to financial problems caused by unemployment or the high cost of living independently
- booster cable — either of a pair of electric cables having clamps at each end and used for starting the engine of a vehicle whose battery is dead.
- bootlace worm — a nemertean worm, Lineus longissimus, that inhabits shingly shores and attains lengths of over 6 m (20 ft)
- boots and all — making every effort; with no holds barred
- borage family — any member of the plant family Boraginaceae, typified by herbaceous plants, shrubs, and trees having simple, alternate, hairy leaves and usually blue, five-lobed flowers in a cluster that uncoils as they bloom, including borage, bugloss, and forget-me-not.
- boraginaceous — of, relating to, or belonging to the Boraginaceae, a family of temperate and tropical typically hairy-leaved flowering plants that includes forget-me-not, lungwort, borage, comfrey, and heliotrope
- border collie — a medium-sized breed of collie with a silky usually black-and-white coat: used mainly as sheepdogs
- border patrol — a government agency in charge of preventing terrorists, weapons, and illegal immigrants entering the country
- border police — the force in charge of policing a border
- border states — slave states bordering on the free states before the Civil War: Mo., Ky., Va., Md., & Del.
- boring sponge — any of a family (Clionidae) of sponges that settle on and dissolve the shells of clams
- boris godunov — Boris Fedorovich [bawr-is fi-dawr-uh-vich,, bohr-,, bor-;; Russian buh-ryees fyaw-duh-ruh-vyich] /ˈbɔr ɪs fɪˈdɔr ə vɪtʃ,, ˈboʊr-,, ˈbɒr-;; Russian bʌˈryis ˈfyɔ də rə vyɪtʃ/ (Show IPA), 1552–1605, regent of Russia 1584–98 and czar 1598–1605.
- borlotti bean — variety of kidney bean
- borna disease — viral disease found in mammals, esp horses
- boroglyceride — any compound containing boric acid and glycerol, used chiefly as an antiseptic.
- boron carbide — a black extremely hard inert substance having a high capture cross section for thermal neutrons. It is used as an abrasive, refractory, and in control rods in nuclear reactors. Formula: B4C
- boron hydride — borane.
- boron nitride — a white inert crystalline solid existing both in a graphite-like form and in an extremely hard diamond-like form (borazon). It is used as a refractory, high-temperature lubricant and insulator, and heat shield. Formula: BN
- borrowed time — an uncertain, usually limited period of time extending beyond or postponing the occurrence of something inevitable.
- bosch process — an industrial process for manufacturing hydrogen by the catalytic reduction of steam with carbon monoxide
- bosman ruling — an EU ruling that allows out-of-contract footballers to leave their clubs without the clubs receiving a transfer fee
- boston matrix — a two-dimensional matrix, used in planning the business strategy of a large organization, that identifies those business units in the organization that generate cash and those that use it
- boston rocker — a type of 19th-cent. American rocking chair, having a curved wooden seat and a high back formed of spindles held in place by a broad headpiece
- botryomycosis — a disease, usually of horses, caused by a bacterial infection (usually, Staphylococcus aureus) producing tumorous growths esp. after castration or a wound or injury
- bottle blonde — a woman with dyed blonde hair
- bottle-opener — A bottle-opener is a metal device for removing caps or tops from bottles.
- bottle-washer — a menial or factotum
- bottled fruit — fruit preserved in glass jars
- bottled water — water sold in bottles
- bottlenecking — a narrow entrance or passageway.
- bottom drawer — a young woman's collection of clothes, linen, cutlery, etc, in anticipation of marriage
- bottom feeder — a fish that feeds on material at the bottom of a river, lake, sea, etc
- bottom-unique — In domain theory, a function f is bottom-unique if f x = bottom <=> x = bottom A bottom-unique function is also strict.
- bottomfishing — to fish with a weighted line for fish that feed close to the bottom.
- bottomset bed — fine sediment deposited at the front of a growing delta
- boudoir grand — a domestic grand piano between 5 and 6 feet in length
- bougainvillea — Bougainvillea is a climbing plant that has thin, red or purple flowers and grows mainly in hot countries.
- bouillabaisse — Bouillabaisse is a rich stew or soup of fish and vegetables.
- bouillon cube — A bouillon cube is a solid cube made from dried meat or vegetable juices and other flavorings. Bouillon cubes are used to add flavor to dishes such as stews and soups.