12-letter words containing s, e, r, o, a
- barophoresis — the diffusion of suspended particles at a rate dependent on external forces
- barquisimeto — a city in NW Venezuela. Pop: 1 009 000 (2005 est)
- basidiospore — one of the spores, usually four in number, produced in a basidium
- batter's box — box1 (def 16a).
- battlefronts — Plural form of battlefront.
- beachcombers — Plural form of beachcomber.
- bean sprouts — the sprouts of newly germinated mung beans, eaten as a vegetable, esp in Chinese dishes
- bean-shooter — peashooter.
- beardtongues — Plural form of beardtongue.
- beaufort sea — part of the Arctic Ocean off the N coast of North America
- 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.
- beta orionis — Rigel
- beta version — beta testing
- bib overalls — overall (def 3a).
- bitter aloes — a bitter purgative drug made from the leaves of several species of aloe
- 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 scoter — a scoter of Eurasia and North America, Melanitta nigra, the adult male of which is black.
- blastosphere — blastula
- 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
- bond servant — a person who serves in bondage; slave.
- boomer state — Oklahoma
- 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
- border state — a state adjacent to a border
- border taxes — taxes payable on goods taken across a border
- borosilicate — a salt of boric and silicic acids
- bottlewasher — a person or machine that washes bottles.
- box lacrosse — a form of lacrosse played indoors, usually on a hockey rink with a wooden floor, between two teams of six players.
- brachycerous — (of insects) having short antennae
- brainstormer — a person who brainstorms
- brassfounder — a person who makes things from brass
- breastplough — a plough driven by the worker's breast, often used to pare turf
- breaststroke — Breaststroke is a swimming stroke which you do lying on your front, moving your arms and legs horizontally in a circular motion.
- brisbane box — a broad-leaved evergreen tree, Tristania conferta, native to Australia, having a deciduous outer bark.
- broca's area — the region of the cerebral cortex of the brain concerned with speech; the speech centre
- brooks range — a mountain range in N Alaska. Highest peak: Mount Isto, 2761 m (9058 ft)
- buenos aires — the capital of Argentina, a major port and industrial city on the Río de la Plata estuary: became capital in 1880; university (1821). Pop: 13 349 000 (2005 est)
- burseraceous — of, relating to, or belonging to the Burseraceae, a tropical family of trees and shrubs having compound leaves and resin or balsam in their stems. The family includes bdellium and some balsams
- by reason of — If one thing happens by reason of another, it happens because of it.
- byelorussian — Byelorussian means belonging or relating to Byelorussia or to its people or culture.
- cabbage rose — a rose, Rosa centifolia, with a round compact full-petalled head
- cadaverously — In a cadaverous manner.
- calcareously — in a calcareous manner
- calorescence — the absorption of radiation by a body, subsequently re-emitted at a higher frequency (lower wavelength)
- calorimeters — Plural form of calorimeter.
- camelopardus — a faint extensive constellation in the N hemisphere close to Ursa Major and Cassiopeia