9-letter words containing o, b, t, a
- body part — a part of a human body
- bohr atom — See under Bohr theory.
- bolt boat — a boat suitable for use in rough seas.
- boltzmann — Ludwig (ˈluːtvɪç). 1844–1906, Austrian physicist. He established the principle of the equipartition of energy and developed the kinetic theory of gases with J. C. Maxwell
- bombaster — a person who stuffs or pads
- bombastic — If you describe someone as bombastic, you are criticizing them for trying to impress other people by saying things that sound impressive but have little meaning.
- bombilate — to make a buzzing noise
- bombinate — to make a buzzing noise
- bonaparte — Jérôme (ʒerom), brother of Napoleon I. 1784–1860, king of Westphalia (1807–13)
- bookcraft — literary skill; authorship.
- bookplate — A bookplate is a piece of decorated paper which is stuck in the front of a book and on which the owner's name is printed or written.
- bookstack — Usually, bookstacks. stack (def 4).
- bookstall — A bookstall is a long table from which books and magazines are sold, for example at a conference or in a street market.
- bookstand — a cradle for holding an open book so that it may be read comfortably
- boot camp — In the United States, a boot camp is a camp where people who have just joined the army, navy, or marines are trained.
- bootblack — a person whose work is shining shoes and boots
- bootmaker — a person who makes boots and shoes for a living
- bootstrap — If you bootstrap an organization or an activity, you set it up or achieve it alone, using very few resources.
- bop stack — A BOP stack is one of two or more units which control well pressure, and contain the wellhead and blowout preventers.
- bosanquet — Bernard, 1848–1923, English philosopher and writer.
- bostonian — a person from Boston
- botanical — Botanical books, research, and activities relate to the scientific study of plants.
- botanizer — a person who botanizes
- botmaster — (chat) The owner of a bot.
- botulinal — of or relating to the bacterium Clostridium botulinum
- box pleat — a flat double pleat made by folding under the fabric on either side of it
- box stall — a small stall with four walls for holding a horse
- bracteole — a secondary bract subtending a flower within an inflorescence
- bradenton — a city in W Florida.
- brantford — a city in central Canada, in SW Ontario. Pop: 86 417 (2001)
- brazelton — Brazelton behavioral scale: a test widely used to evaluate infants' responses to environmental stimuli.
- breadroot — a leguminous plant, Psoralea esculenta, of central North America, having an edible starchy root
- break out — If something such as war, fighting, or disease breaks out, it begins suddenly.
- briarroot — the hard woody root of the briar, used for making tobacco pipes
- broach to — to turn or swing so that the beam faces the waves and wind and there is danger of swamping or capsizing
- broadcast — A broadcast is a programme, performance, or speech on the radio or on television.
- broadtail — the highly valued black wavy fur obtained from the skins of newly born karakul lambs; caracul
- bromantic — noting or pertaining to a bromance: You might call this movie a bromantic comedy.
- bromatium — any of the swollen hyphal tips of certain fungi, on which ants can feed.
- brominate — to treat or react with bromine
- brown bat — any of several small to medium-sized common bats of the genera Myotis and Eptesicus, found worldwide in caves, trees, and buildings, including M. lucifugus (little brown bat) and E. fuscus (big brown bat) a widespread North American species.
- brown fat — tissue composed of a type of fat cell that dissipates as heat most of the energy released when food is oxidized; brown adipose tissue. It is present in hibernating animals and human babies and is thought to be important in adult weight control
- brown rat — a common brownish rat, Rattus norvegicus: a serious pest in all parts of the world
- bufotalin — the principal poisonous substance in the skin and saliva of the common European toad
- buoy boat — a boat used in whaling for holding and towing the whales killed during a hunt.
- buoyantly — in a happy, confident manner
- bush coat — a belted, hip-length, shirtlike jacket, usually with four patch pockets and a notched collar, adapted from the hunting coat customarily worn in the African bush.
- cabriolet — A cabriolet is a type of car with two doors and a convertible top.
- canalboat — a long narrow boat used on canals, esp for carrying freight
- cancelbot — a computer program that deletes unwanted mailings to internet usergroups