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20-letter words containing s, i, e, n, a

  • arches national park — a national park in E Utah: natural arch formations. 114 sq. mi. (295 sq. km).
  • argument from design — the argument for the existence of God based on the assumption that order in the universe implies an orderer and cannot be a natural feature of the universe.
  • artificial selection — a process in the breeding of animals and in the cultivation of plants by which the breeder chooses to perpetuate only those forms having certain desirable inheritable characteristics.
  • aschheim-zondek test — a test used to detect whether a woman is pregnant by noting the effect on the ovaries of an immature mouse or rabbit injected with her urine.
  • asexual reproduction — reproduction, as budding, fission, or spore formation, not involving the union of gametes.
  • asian tiger mosquito — a mosquito, Aedes albopictus, native to Asia, that transmits yellow fever and dengue and possibly West Nile virus. Compare yellow-fever mosquito.
  • asset turnover ratio — An asset turnover ratio is a measure of the efficiency of a company, that is calculated by dividing sales for a period by average total assets.
  • astatic galvanometer — a galvanometer that is unaffected by the earth's magnetic field and is used for measuring small currents.
  • at one's convenience — at a time, or in a place or manner, suitable to one
  • at one's finger tips — the tip or end of a finger.
  • at someone's service — ready to serve or cooperate with someone
  • at two hours' notice — with notification only two hours in advance
  • australian rye grass — a European grass, Lolium multiflorum, naturalized in North America, having flowering spikes and used as a winter turf.
  • automobile insurance — Automobile insurance is insurance coverage for cars.
  • bartramian sandpiper — upland sandpiper.
  • basal cell carcinoma — a common and usually curable skin cancer that arises from epithelial cells and rarely metastasizes: often associated with overexposure to sunlight.
  • basic encoding rules — (protocol, standard)   (BER) ASN.1 encoding rules for producing self-identifying and self-delimiting transfer syntax for data structures described in ASN.1 notations. BER is an self-identifying and self-delimiting encoding scheme, which means that each data value can be identified, extracted and decoded individually. Huw Rogers once described BER as "a triumph of bloated theory over clean implementation". He also criticises it as designed around bitstreams with arbitrary boundaries between data which can only be determined at a high level. Documents: ITU-T X.690, ISO 8825-1. See also CER, DER, PER.
  • basic lead carbonate — ceruse.
  • basic oxygen process — a process for refining steel in which oxygen is blown into the molten iron
  • basic rate interface — (communications)   (BRI, 2B+D, 2B1D) An Integrated Services Digital Network channel consisting of two 64 kbps "bearer" (B) channels and one 16 kbps "delta" (D) channel, giving a total data rate of 144 kbps. The B channels are used for voice or user data, and the D channel is used for control and signalling and/or X.25 packet networking. BRI is the kind of ISDN interface most likely to be found in residential service.
  • bats-wing coral-tree — a small tree, Erythrina verspertilio, of tropical and subtropical Australia with red flowers and leaves shaped like the wings of a bat
  • be set in one's ways — If you say that someone is set in their ways, you are being critical of the fact that they have fixed habits and ideas which they will not easily change, even though they may be old-fashioned.
  • beaverhead mountains — a mountain range on the border of E Idaho and SW Montana, in the Bitterroot Range. 10,961 feet (3343 meters).
  • belgian shepherd dog — a medium-sized well-proportioned dog of a breed that resembles an Alsatian in appearance and is often used as a sheepdog or a guard dog
  • benzenesulfonic acid — a fine, needlelike substance, C 6 H 6 SO 3 , used chiefly as a catalyst and in the synthesis of phenol, resorcinol, and other organic products.
  • benztropine mesylate — a synthetic anticholinergic, C 21 H 25 NO⋅CH 4 O 3 S, used in the treatment of Parkinson's disease.
  • benzyl isoamyl ether — a colorless liquid, C 12 H 18 O, used in soap perfumes.
  • bernese mountain dog — a strong sturdy dog of a breed with a bushy tail and a long silky black coat with reddish-brown and white markings, often used as a working farm dog
  • bird-footed dinosaur — theropod.
  • black lung (disease) — a disease of the lungs caused by the inhalation of coal dust; anthracosis
  • blow up in sb's face — If something that you have planned blows up in your face, it goes wrong unexpectedly, with the result that you suffer.
  • blue ridge mountains — a mountain range in the eastern US, extending from West Virginia into Georgia: part of the Appalachian mountains. Highest peak: Mount Mitchell, 2038 m (6684 ft)
  • bone mineral density — a measurement of the amount of calcium and other minerals in a segment of bone, a higher mineral content indicating a higher bone density and strength, used to detect osteoporosis or monitor its treatment.
  • bouvier des flandres — any of a breed of large, strong dog with a rough, wiry coat and pointed, erect ears
  • breakerless ignition — electronic ignition.
  • breakfast and dinner — Breakfast and dinner is a system of accommodations in a hotel or guest house, in which you pay for a room and breakfast and dinner the following day.
  • breakfast television — Breakfast television refers to television programmes which are broadcast in the morning at the time when most people are having breakfast.
  • british thermal unit — a unit of heat in the fps system equal to the quantity of heat required to raise the temperature of 1 pound of water by 1°F. 1 British thermal unit is equivalent to 1055.06 joules or 251.997 calories
  • brittle bone disease — bone disorder
  • broaden o's/the mind — If an experience broadens your mind, it makes you more willing to accept other people's beliefs and customs.
  • brown lung (disease) — a chronic disease of the lungs caused by inhalation of fine textile fibers, esp. cotton; byssinosis
  • cancel a reservation — If you cancel a reservation, you stop it because someone who has booked a room has informed you that they no longer wish to stay there.
  • canine leptospirosis — an often fatal intestinal disease in dogs, caused by any of several spirochetes of the genus Leptospira.
  • cape prince of wales — a cape in W Alaska, on the Bering Strait opposite the coast of the extreme northeast of Russia: the westernmost point of North America
  • capital transfer tax — (in Britain) a tax payable from 1974 to 1986 at progressive rates on the cumulative total of gifts of money or property made during the donor's lifetime or after his death. It was replaced by inheritance tax
  • carbon sequestration — the prevention of greenhouse gas build-up in the earth's atmosphere by methods such as planting trees to absorb carbon dioxide or pumping carbon dioxide into underground reservoirs
  • cartesian coordinate — Usually, Cartesian coordinates. a member of a system of coordinates for locating a point on a plane (Cartesian plane) by its distance from each of two intersecting lines, or in space by its distance from each of three planes intersecting at a point.
  • case based reasoning — (artificial intelligence)   (CBR) A technique for problem solving which looks for previous examples which are similar to the current problem. This is useful where heuristic knowledge is not available. There are many situations where experts are not happy to be questioned about their knowledge by people who want to write the knowledge in rules, for use in expert systems. In most of these situations, the natural way for an expert to describe his or her knowledge is through examples, stories or cases (which are all basically the same thing). Such an expert will teach trainees about the expertise by apprenticeship, i.e. by giving examples and by asking the trainees to remember them, copy them and adapt them in solving new problems if they describe situations that are similar to the new problems. CBR aims to exploit such knowledge. Some key research areas are efficient indexing, how to define "similarity" between cases and how to use temporal information.
  • casing head pressure — The casing head pressure is the pressure on the casing, which is measured at the wellhead.
  • cassegrain telescope — an astronomical reflecting telescope in which incident light is reflected from a large concave paraboloid mirror onto a smaller convex hyperboloid mirror and then back through a hole in the concave mirror to form the image
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