15-letter words containing s, e, r, o, a
- at death's door — If you say that someone is at death's door, you mean they are very ill indeed and likely to die.
- at short notice — Notice is used in expressions such as 'at short notice', 'at a moment's notice' or 'at twenty-four hours' notice', to indicate that something can or must be done within a short period of time.
- at the controls — If someone is at the controls of a machine or other piece of equipment, they are operating it.
- at your service — You can use 'at your service' after your name as a formal way of introducing yourself to someone and saying that you are willing to help them in any way you can.
- atherosclerosis — a degenerative disease of the arteries characterized by patchy thickening of the inner lining of the arterial walls, caused by deposits of fatty material; a form of arteriosclerosis
- atherosclerotic — Of, pertaining to, or afflicted with atherosclerosis.
- athletic sports — sports, esp track and field events, in which athleticism is required
- atmospherically — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
- atrabiliousness — The state or quality of being characterized by melancholy or glumness.
- augusta gregory — Lady Augusta (Isabella Augusta Persse) 1852–1932, Irish dramatist.
- aurora borealis — the aurora seen around the North Pole
- autobiographers — Plural form of autobiographer.
- autobiographies — Plural form of autobiography.
- autodestructive — likely to cause one's own destruction
- autofluorescent — Of, pertaining to, or exhibiting autofluorescence.
- autostereoscopy — The display of stereoscopic images without the use of special viewing equipment.
- autotransformer — a transformer in which part of the winding is common to both primary and secondary circuits
- aviator glasses — sunglasses that look like goggles
- azobisformamide — (chemistry) azodicarbonamide.
- backup software — (tool, software) Software for doing a backup, often included as part of the operating system. Backup software should provide ways to specify what files get backed up and to where. It may include its own scheduling function to automate the procedure or, preferably, work with generic scheduling facilities. It may include facilities for managing the backup media (e.g. maintaining an index of tapes) and for restoring files from backups. Examples are Unix's dump command and Windows's ntbackup.
- bacterial ghost — a bacterial cell that is emptied and filled artificially with another substance
- bacteriophagous — Pertaining to the predation and consumption of bacterium.
- bad housekeeper — a person who is not an efficient and thrifty domestic manager
- bandstop filter — A bandstop filter is a filter designed to eliminate all frequencies within a band of frequencies.
- baptism of fire — If someone who has just begun a new job has a baptism of fire, they immediately have to cope with very many severe difficulties and obstacles.
- barn conversion — the adaptation of a farm barn into a building serving a different use, such as a house or commercial premises
- barn-door skate — an Atlantic skate, Raja laevis, that grows to a length of 4 feet (1.2 meters) or more.
- basic autocoder — Early system on IBM 7070. Listed in CACM 2(5):16 (May 1959).
- basse-normandie — a region of NW France, on the English Channel: consists of the Cherbourg peninsula in the west rising to the Normandy hills in the east; mainly agricultural
- bathroom scales — scales typically kept in a bathroom for people to weigh themselves
- bear comparison — to be sufficiently similar in class or range to be compared with (something else), esp favourably
- beast of burden — A beast of burden is an animal such as an ox or a donkey that is used for carrying or pulling things.
- beef stroganoff — a dish of thin strips of beef cooked with onions, mushrooms, and seasonings, served in a sour-cream sauce
- before the mast — as an apprentice seaman
- ben day process — a method of adding texture, shading, or detail to line drawings by overlaying a transparent sheet of dots or any other pattern during platemaking
- beta conversion — (theory) A term from lambda-calculus for beta reduction or beta abstraction.
- binomial series — an infinite series obtained by expanding a binomial raised to a power that is not a positive integer.
- bird of passage — If you refer to someone as a bird of passage, you mean that they are staying in a place for a short time before going to another place.
- black snakeroot — a tall bugbane, Cimicifuga racemosa, of the buttercup family, of eastern North America, having thin, tapering, toothed or deeply cut leaflets and branched clusters of small, white flowers.
- blasting powder — a form of gunpowder made with sodium nitrate instead of saltpeter, used chiefly for blasting rock, ore, etc.
- blue wood aster — a composite plant, Aster cordifolius, of North America, having heart-shaped leaves and pale-blue flowers.
- bohemian forest — a mountain range between the SW Czech Republic and SE Germany. Highest peak: Arber, 1457 m (4780 ft)
- borderline case — a person or thing that is not clearly classifiable as something
- borrower's card — a card issued by a library to individuals or organizations entitling them or their representatives to borrow materials.
- boston marriage — (especially in 19th-century New England) an intimate friendship between two women often maintaining a household together.
- boston massacre — an outbreak (1770) in Boston against British troops, in which a few citizens were killed
- brachistochrone — the curve between two points through which a body moves under the force of gravity in a shorter time than for any other curve; the path of quickest descent
- branchiostegous — branchiostegal.
- brand extension — the practice of using a well-known brand name to promote new products or services in unrelated fields
- breach of trust — a violation of duty by a trustee or any other person in a fiduciary position