12-letter words containing p, e, r, s
- arthrospores — an isolated vegetative cell that has passed into a resting state, occurring in bacteria and not regarded as a true spore.
- as per usual — as usual
- asking price — The asking price of something is the price which the person selling it says that they want for it, although they may accept less.
- asparaginase — an enzyme used in treating leukaemia
- aspect ratio — the ratio of width to height of the picture on a television or cinema screen
- aspiringness — the condition of being aspiring
- assessorship — the occupation, post or duties of a person who assesses, advises, or estimates
- astral plane — a plane of existence inhabited by astral bodies
- at the press — being printed
- atmospherics — Atmospherics are elements in something such as a piece of music or a book which create a certain atmosphere.
- atmospherium — an optical system used to simulate images of atmospheric phenomena, as cloud formations, storms, and day and night, on the inside of a dome.
- attorneyship — The office or profession of an attorney.
- autoexposure — A device that sets the exposure automatically on a camera or other piece of equipment.
- b-s particle — a neutral meson with a mass 10,507 times that of the electron and a mean lifetime of approximately 1.6 X 10 -12 seconds.
- bachelorship — the state of being a bachelor; bachelorhood
- back-slapper — the practice of making a loud and effusive display of friendliness, cordiality, etc., as by slapping persons on the back.
- backpressure — a resistant pressure exerted by liquid or gas against the forward motion or flow of an exhaust or pipe system: Careful control of backpressure ensures an even supply of oil from the well.
- bald cypress — a tree, Taxodium distichum, of swampy areas of the southern U.S., having featherlike needles and cone-shaped projections growing up from the roots, yielding a hardwood used in construction, shipbuilding, etc.
- bankruptcies — Plural form of bankruptcy.
- baptisteries — Plural form of baptistery.
- barophoresis — the diffusion of suspended particles at a rate dependent on external forces
- base pairing — the hydrogen bonding that occurs between complementary nitrogenous bases in the two polynucleotide chains of a DNA molecule
- base-pairing — the process of binding separate DNA sequences by base pairs.
- basidiospore — one of the spores, usually four in number, produced in a basidium
- bathyspheres — Plural form of bathysphere.
- beamsplitter — Alternative spelling of beam splitter.
- bean sprouts — the sprouts of newly germinated mung beans, eaten as a vegetable, esp in Chinese dishes
- beauty strip — a narrow forest corridor left uncut alongside a road or body of water.
- bernese alps — a mountain range in SW Switzerland, the N central part of the Alps. Highest peak: Finsteraarhorn, 4274 m (14 022 ft)
- bernina alps — a mountain group in SE Switzerland, extending from the Rhateian Alps on the Italian border. Highest peak, Piz Bernina, 13,304 feet (4055 meters).
- bernina pass — a pass in the Alps between SE Switzerland and N Italy, east of Piz Bernina. Height: 2323 m (7622 ft)
- bird-spotter — a bird-watcher
- black papers — unofficial papers criticizing government policy
- black spruce — a coniferous tree, Picea mariana, of the northern regions of North America, growing mostly in cold bogs and having dark green needles
- blastosphere — blastula
- blister pack — a type of packet in which small items are displayed and sold, consisting of a transparent dome of plastic or similar material mounted on a firm backing such as cardboard
- blue springs — a town in W Missouri.
- body repairs — repairs to the bodywork of cars
- booster pump — A booster pump is a pump which is used where pressure is low and needs to be increased.
- 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
- brass plaque — a brass plate screwed to a wall or other structure and engraved with a name or other information, esp to commemorate an important event
- breastplough — a plough driven by the worker's breast, often used to pare turf
- brenner pass — a pass over the E Alps, between Austria and Italy. Highest point: 1372 m (4501 ft)
- brine shrimp — any of a genus (Artemia) of small fairy shrimp found in salt lakes and marshes and used as living, frozen, or dried food in aquariums
- bronchoscope — an instrument for examining and providing access to the interior of the bronchial tubes
- butcher shop — a shop in which meat, poultry, and sometimes fish are sold.
- buying spree — the hurried acquisition by a company, of goods, assets, or other companies
- camelopardus — a faint extensive constellation in the N hemisphere close to Ursa Major and Cassiopeia
- cameraperson — a camera operator
- candy stripe — a pattern of bright stripes of one color against a plain background, used chiefly in fabrics.