15-letter words containing at
- at the mercy of — in the power of
- at the point of — very close to; on the verge of
- at the touch of — You use at the touch of in expressions such as at the touch of a button and at the touch of a key to indicate that something is possible by simply touching a switch or one of the keys of a keyboard.
- 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.
- athlete's heart — enlargement of the heart, caused by continued, heavy physical exertion
- athletic sports — sports, esp track and field events, in which athleticism is required
- atlantic puffin — any of several alcidine sea birds of the genera Fratercula and Lunda, having a short neck and a large, compressed, grooved bill, as F. arctica (Atlantic puffin) of the North Atlantic.
- atlantic ridley — ridley (def 1).
- atlantic salmon — a valuable food and game fish, Salmo salar, mainly of northern coastal Atlantic waters or, when spawning, in freshwater streams tributary to the ocean.
- atlantic-ridley — ridley (def 1).
- atlas mountains — a mountain system of N Africa, between the Mediterranean and the Sahara. Highest peak: Mount Toubkal, 4165 m (13 664 ft)
- atmospherically — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
- atomic cocktail — an aqueous solution of radioactive substance administered orally as part of the treatment for cancer
- atrabiliousness — The state or quality of being characterized by melancholy or glumness.
- attitude survey — a survey of the opinions held by a particular group of people
- attorney-at-law — a lawyer qualified to represent in court a party to a legal action
- audience rating — a figure based on statistical sampling indicating what proportion of the total listening and viewing audience tune in to a specific programme or network
- authenticatable — to establish as genuine.
- authentications — Plural form of authentication.
- authoritatively — having due authority; having the sanction or weight of authority: an authoritative opinion.
- autocollimation — the process used in an autocollimator.
- autocorrelation — the condition occurring when successive items in a series are correlated so that their covariance is not zero and they are not independent
- autocorrelative — Relating to autocorrelation.
- autoinoculation — the inoculation of microorganisms (esp viruses) from one part of the body into another, usually in the form of a vaccine
- automata theory — the formal study of the power of computation of abstract machines
- automatic drive — an automotive transmission requiring either very little or no manual shifting of gears.
- automatic focus — a system in a camera which automatically adjusts the lens so that the object being photographed is in focus, often one using infrared light to estimate the distance of the object from the camera
- automatic pilot — An automatic pilot or an autopilot is a device in an aircraft that automatically keeps it on a particular course.
- automatic rifle — a type of light machine gun capable of firing automatically or in single shots.
- aviator glasses — sunglasses that look like goggles
- back-scratching — a reciprocal exchange of favors, aid, or compliments
- backseat driver — If you refer to a passenger in a car as a backseat driver, they annoy you because they constantly give you advice about how to drive.
- backup rotation — (operating system) Any system for re-using backup media, e.g. magnetic tape. One extreme would be to use the same media for every backup (e.g. copy disk A to disk B), the other extreme would be to use new media every time. The trade-off is between the cost of buying and storing media and the ability to restore any version of any file. One example is the Grandfather, Father, Son (GFS) scheme.
- banded anteater — an Australian marsupial, Myrmecobius fasciatus, feeding on termites and having the body marked with whitish transverse bars: nearly extinct.
- bar examination — a written examination to determine if one is qualified to practice law in a particular jurisdiction.
- barium chromate — a yellow, crystalline compound, BaCrO 4 , used as a pigment (barium yellow)
- barium stearate — a white, crystalline, water-insoluble solid, Ba(C 18 H 35 O 2) 2 , used chiefly as a waterproofing agent and as a lubricant.
- barium sulphate — a white insoluble fine dense powder, used as a pigment, as a filler for paper, rubber, etc, and in barium meals. Formula: BaSO4
- barium titanate — a crystalline ceramic used in capacitors and piezoelectric devices. Formula: BaTiO3
- barn-door skate — an Atlantic skate, Raja laevis, that grows to a length of 4 feet (1.2 meters) or more.
- basic education — (in India) education in which all teaching is correlated with the learning of a craft
- basic statement — protocol (def 6).
- bat-wing sleeve — formed, shaped, etc., like the wing of a bat.
- bateau neckline — a wide, high neckline that follows the curve of the collarbone and ends in points on the shoulder seams.
- bathing costume — A bathing costume is a piece of clothing that is worn for swimming, especially by women and girls.
- bathing machine — a small hut, on wheels so that it could be pulled to the sea, used in the 18th and 19th centuries for bathers to change their clothes
- bathing-machine — a small bathhouse on wheels formerly used as a dressing room and in which bathers could also be transported from the beach to the water.
- bathroom scales — scales typically kept in a bathroom for people to weigh themselves