12-letter words containing e, p, a, s
- astigmoscope — astigmatoscope.
- 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 passage — People sometimes refer to their rectum as their back passage.
- back-slapper — the practice of making a loud and effusive display of friendliness, cordiality, etc., as by slapping persons on the back.
- back-stopped — a wall, wire screen, or the like, serving to prevent a ball from going too far beyond the normal playing area.
- 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.
- backsplashes — Plural form of backsplash.
- 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.
- balsam apple — an ornamental cucurbitaceous vine, Momordica balsamina, of the Old World tropics, with yellow flowers and orange egg-shaped fruits
- banach space — a vector space on which a norm is defined that is complete.
- bank deposit — money placed in a bank account
- bankruptcies — Plural form of bankruptcy.
- baptisteries — Plural form of baptistery.
- barophoresis — the diffusion of suspended particles at a rate dependent on external forces
- base jumping — a sport in which a participant parachutes from any of a variety of fixed objects such as high buildings, cliffs, etc
- 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.
- baseball cap — A baseball cap is a close-fitting cap with a curved part at the front that sticks out above your eyes.
- basidiospore — one of the spores, usually four in number, produced in a basidium
- basses-alpes — former name of Alpes-de-Haute Provence.
- bathyscaphes — Plural form of bathyscaphe.
- bathyspheres — Plural form of bathysphere.
- battle clasp — clasp (def 4).
- beam compass — an instrument for drawing large circles or arcs, consisting of a horizontal beam along which two vertical legs slide
- beamsplitter — Alternative spelling of beam splitter.
- bean sprouts — the sprouts of newly germinated mung beans, eaten as a vegetable, esp in Chinese dishes
- beauty sleep — sleep, esp sleep before midnight
- beauty strip — a narrow forest corridor left uncut alongside a road or body of water.
- bedside lamp — a lamp beside a bed
- bell's palsy — a usually temporary paralysis of the muscles of the face, normally on one side
- 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)
- bespectacled — Someone who is bespectacled is wearing glasses.
- bien pensant — a right-thinking person
- black papers — unofficial papers criticizing government policy
- black sapote — a tropical American tree, Diospyros digyna, related to the persimmon, having sweet, edible, green fruit that turns black when ripe.
- 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
- blood sample — an amount of a person's blood taken from their body for use in medical tests
- body repairs — repairs to the bodywork of cars
- bog asphodel — either of two liliaceous plants, Narthecium ossifragum of Europe or N. americanum of North America, that grow in boggy places and have small yellow flowers and grasslike leaves