12-letter words containing o, r, a, l
- battleground — A battleground is the same as a battlefield.
- battleworthy — capable of engaging in combat; ready for battle: a decline in the nation's battleworthy forces.
- be on a roll — to have a series of successes; go from success to success
- beaver cloth — beaver1 (def 8).
- beer parlour — a room in a tavern, hotel, etc in which beer is served
- behaviorally — manner of behaving or acting.
- below stairs — People sometimes use below stairs to refer to the servants in a rich household and the things that are connected with them.
- benzal group — the bivalent group C 7 H 6 –, derived from benzaldehyde.
- beta blocker — A beta blocker is a drug which is used to treat people who have high blood pressure or heart problems.
- beta-blocker — any of various substances that interfere with the action of the beta receptors: used primarily to reduce the heart rate or force in the prevention, management, or treatment of angina, hypertension, or arrythmias.
- bib overalls — overall (def 3a).
- bibliography — A bibliography is a list of books on a particular subject.
- bicollateral — (of a vascular bundle) having two phloem groups to the inside and outside, respectively, of the xylem
- bill of fare — The bill of fare at a restaurant is a list of the food for a meal from which you may choose what you want to eat.
- binary color — secondary color.
- bingo caller — the person who shouts out the numbers to bingo players
- binocularity — binocular characteristics
- biographical — Biographical facts, notes, or details are concerned with the events in someone's life.
- biomolecular — relating to a biomolecule
- bipropellant — a rocket propellant consisting of two substances, usually a fuel and an oxidizer
- bitter aloes — a bitter purgative drug made from the leaves of several species of aloe
- blabbermouth — a person who talks too much or indiscreetly
- black bryony — a climbing herbaceous Eurasian plant, Tamus communis, having small greenish flowers and poisonous red berries: family Dioscoreaceae
- black copper — a regulus of 95-percent-pure copper, produced in a blast furnace by smelting oxidized copper ores.
- black forest — wooded mountain region in SW Germany
- black grouse — a large N European grouse, Lyrurus tetrix, the male of which has a bluish-black plumage and lyre-shaped tail
- black heroin — a very potent and addictive form of heroin that is dark-colored.
- black liquor — (in making wood pulp for paper) the liquor that remains after digestion.
- black poplar — a Eurasian tree, Populus nigra
- black powder — gunpowder as used in sports involving modern muzzleloading firearms
- black scoter — a scoter of Eurasia and North America, Melanitta nigra, the adult male of which is black.
- bladder worm — an encysted saclike larva of the tapeworm. The main types are cysticercus, hydatid, and coenurus
- 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.
- blastosphere — blastula
- blaze orange — a very bright orange, as on a traffic cone.
- blennorrhoea — an excessive discharge of watery mucus, esp from the urethra or the vagina
- bletheration — nonsense!
- 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.
- blood orange — a variety of orange all or part of the pulp of which is dark red when ripe
- board school — (formerly) a school managed by a board elected by local ratepayers
- boardsailing — windsurfing
- boilermaking — metal-working in heavy industry; plating or welding
- bonnyclabber — clotted or curdled milk
- boolean ring — a nonempty collection of sets having the properties that the union of two sets of the collection is a set in the collection and that the relative complement of each set with respect to any other set is in the collection.
- born-digital — relating to or noting documents, images, etc., that are created and managed in electronic form: electronic preservation of born-digital content; a born-digital e-book that will not be available in print.
- borosilicate — a salt of boric and silicic acids
- borough hall — a building housing the administrative offices of a borough.
- bottle party — a party to which guests bring drink
- bottlewasher — a person or machine that washes bottles.
- boulangerite — a bluish lead-gray mineral, lead antimony sulfide, Pb 5 Sb 4 S 11 , a minor ore of lead.