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12-letter words containing b, o, a, k

  • black liquor — (in making wood pulp for paper) the liquor that remains after digestion.
  • black locust — Also called false acacia, yellow locust. a North American tree, Robinia pseudoacacia, of the legume family, having pinnate leaves and clusters of fragrant white flowers.
  • black poplar — a Eurasian tree, Populus nigra
  • black powder — gunpowder as used in sports involving modern muzzleloading firearms
  • black sapote — a tropical American tree, Diospyros digyna, related to the persimmon, having sweet, edible, green fruit that turns black when ripe.
  • black scoter — a scoter of Eurasia and North America, Melanitta nigra, the adult male of which is black.
  • black tongue — canine pellagra.
  • black-coated — (esp formerly) (of a worker) clerical or professional, as distinguished from commercial or industrial
  • blanket roll — a blanket or sleeping bag rolled into a cylindrical pack for easy carrying and outdoor use by hikers, soldiers, cowboys, etc., often with cooking utensils, food, and personal articles carried inside.
  • blanket toss — a game in which a person is repeatedly tossed into the air and caught on an open blanket by a group of people who hold the blanket at its edges and stretch and relax it for each toss and catch.
  • block caving — a method of mining a large block of ore by systematically undercutting so the ore will cave. Compare cave (def 5a).
  • block heater — an electrically operated immersion heater fitted either to enter the water hose or the water jacket surrounding the cylinder block of a motor to warm the coolant in cold weather.
  • block island — an island off the coast of and a part of Rhode Island, at the E entrance to Long Island Sound.
  • block signal — a fixed railroad signal governing the movements of trains entering and using a given section of track.
  • boating lake — a lake in a park where rowing boats can be hired
  • bobbery pack — a mixed pack of hunting dogs, often not belonging to any of the hound breeds
  • boilermaking — metal-working in heavy industry; plating or welding
  • book matches — safety matches made of paper and fastened into a small cardboard folder
  • booklet pane — Philately. any of a number of panes or small pages of postage stamps, stapled together into a booklet for the convenience of users.
  • bottom break — a branch coming from the bottom of a plant stem, usually formed by pinching and disbudding.
  • bottom quark — a type of quark with a mass of c. 4.7 to 5.3 GeV/c2, a negative charge that is 1⁄3 the charge of an electron, zero charm, and zero strangeness
  • bracket foot — a corner foot of a chest or the like joining the sides in a concave line.
  • break ground — to do something that has not been done before
  • break of day — dawn; daybreak.
  • breaker zone — the area offshore where waves break, between the outermost breaker and the limit of wave uprush; the zone within which waves approaching the coastline start breaking, usually in water depths of 16 to 32 feet (5 to 10 meters).
  • breakthrough — A breakthrough is an important development or achievement.
  • breaststroke — Breaststroke is a swimming stroke which you do lying on your front, moving your arms and legs horizontally in a circular motion.
  • broken arrow — a town in NE Oklahoma.
  • broken heart — If you say that someone has a broken heart, you mean that they are very sad, for example because a love affair has ended unhappily.
  • broken water — a patch of water whose surface is rippled or choppy, usually surrounded by relatively calm water.
  • brooks range — a mountain range in N Alaska. Highest peak: Mount Isto, 2761 m (9058 ft)
  • brooks's law — (programming)   "Adding manpower to a late software project makes it later" - a result of the fact that the expected advantage from splitting work among N programmers is O(N) (that is, proportional to N), but the complexity and communications cost associated with coordinating and then merging their work is O(N^2) (that is, proportional to the square of N). The quote is from Fred Brooks, a manager of IBM's OS/360 project and author of "The Mythical Man-Month". The myth in question has been most tersely expressed as "Programmer time is fungible" and Brooks established conclusively that it is not. Hackers have never forgotten his advice; too often, management still does. See also creationism, second-system effect, optimism.
  • brown canker — a fungous disease of roses, characterized by leaf and flower lesions, stem cankers surrounded by a reddish-purple border, and dieback.
  • brown hackle — an artificial fly having a peacock herl body, golden tag and tail, and brown hackle.
  • bucket about — (esp of a boat in a storm) to toss or shake violently
  • bullock cart — a cart pulled by one or two bullocks
  • burkina faso — an inland republic in W Africa: dominated by Mossi kingdoms (10th–19th centuries); French protectorate established in 1896; became an independent republic in 1960; consists mainly of a flat savanna plateau. Official language: French; Mossi and other African languages also widely spoken. Religion: mostly animist, with a large Muslim minority. Currency: franc. Capital: Ouagadougou. Pop: 17 812 961 (2013 est). Area: 273 200 sq km (105 900 sq miles)
  • carbon black — a black finely divided form of amorphous carbon produced by incomplete combustion of natural gas or petroleum: used to reinforce rubber and in the manufacture of pigments and ink
  • cavity block — a precast concrete block that contains a cavity or cavities
  • chapter book — a children's book, typically a work of fiction, of moderate length and complexity, divided into chapters and intended for readers approximately seven to ten years old
  • checkerboard — A checkerboard is a square board with 64 black and white squares that is used for playing checkers or chess.
  • cocktail bar — a bar which serves cocktails
  • coffee break — A coffee break is a short period of time, usually in the morning or afternoon, when you stop working and have a cup of coffee.
  • combat knife — a large knife for military use
  • come back to — If you come back to a topic or point, you talk about it again later.
  • cork cambium — a layer of meristematic cells in the cortex of the stems and roots of woody plants, the outside of which gives rise to cork cells and the inside to secondary cortical cells (phelloderm)
  • crack a book — to break without complete separation of parts; become fissured: The plate cracked when I dropped it, but it was still usable.
  • dak bungalow — (in India, formerly) a house where travellers on a dak route could be accommodated
  • dasher block — a block at the end of a yard or gaff for supporting a signal or ensign halyard.
  • diamondbacks — Plural form of diamondback.
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