12-letter words containing a, e, r, o, b
- behaviourism — Behaviourism is the belief held by some psychologists that the only valid method of studying the psychology of people or animals is to observe how they behave.
- 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.
- benzoapyrene — a carcinogenic chemical in tobacco smoke
- beta blocker — A beta blocker is a drug which is used to treat people who have high blood pressure or heart problems.
- beta orionis — Rigel
- beta version — beta testing
- 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.
- betacarotene — the most important form of the plant pigment carotene, which occurs in milk, vegetables, and other foods and, when eaten by man and animals, is converted in the body to vitamin A
- beyond reach — inaccessible
- bib overalls — overall (def 3a).
- 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.
- bingo caller — the person who shouts out the numbers to bingo players
- biogeography — the branch of biology concerned with the geographical distribution of plants and animals
- biometrician — a person who is knowledgeable about biometry
- 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 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 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 member — a member of board of directors
- boarder baby — an infant or young child who is abandoned or orphaned and left in a hospital for lack of a foster home.
- bobbery pack — a mixed pack of hunting dogs, often not belonging to any of the hound breeds
- body repairs — repairs to the bodywork of cars
- body scanner — a machine using X-rays and a computer, used in medicine to look for signs of disease, or in security operations to look for drugs, weapons, etc
- bog rosemary — any of several species (genus Andromeda) of evergreen shrubs of the heath family, native to cold bogs of North America and Europe, with pink flowers and narrow leaves
- boilermaking — metal-working in heavy industry; plating or welding
- bond servant — a person who serves in bondage; slave.
- bonnyclabber — clotted or curdled milk
- boobytrapped — to set with or as if with a booby trap; attach a booby trap to or in.
- boogie board — a small, flexible plastic surfboard, ridden lying down.
- 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.
- boomer state — Oklahoma
- boomeranging — a bent or curved piece of tough wood used by the Australian Aborigines as a throwing club, one form of which can be thrown so as to return to the thrower.
- booster seat — A booster seat or a booster cushion is a special seat which allows a small child to sit in a higher position, for example at a table or in a car.
- boot-scraper — a contraption consisting of an upright metal shape formerly placed outside some houses to enable people to scrape the mud from their boots before going in