19-letter words containing s, y, n
- restriction enzymes — any of a group of enzymes that catalyze the cleavage of DNA molecules at specific sites: used for gene splicing in recombinant DNA technology and for chromosome mapping.
- rhythmic gymnastics — a form of gymnastics involving movements using hand apparatus such as balls, hoops, and ribbons
- royal correspondent — a journalist who reports on matters relating to royalty
- saint patrick's day — March 17, observed by the Irish in honor of St. Patrick, the patron saint of Ireland.
- saint swithin's day — July 15, superstitiously regarded as a day that, should it rain or be fair, will be followed by 40 consecutive days of like weather.
- san fernando valley — valley in SW Calif., partly in NW Los Angeles: c. 260 sq mi (673 sq km)
- sandra day o'connor — Frank (Michael Donovan) 1903–66, Irish writer.
- sanitary protection — Sanitary protection is sanitary towels or tampons.
- sea of tranquillity — Astronomy. Mare Tranquillitatis.
- secondary dentition — the permanent dentition
- secondary education — education at high-school level
- secondary infection — an infection resulting from another infection
- secondary intention — See under intention (def 5b).
- secondary picketing — the picketing by strikers of a place of work that supplies goods to or distributes goods from their employer
- secondary processes — the conscious mental activity and logical thinking controlled by the ego and influenced by environmental demands.
- secondary qualities — one of the qualities attributed by the mind to an object perceived, such as color, temperature, or taste.
- secondary structure — the arrangement of a polypeptide into a regular alpha helix, beta structure, or random coil configuration by the formation of intramolecular hydrogen bonds along the length of the chain.
- secondary-intention — an act or instance of determining mentally upon some action or result.
- see one's way clear — to be willing (to do something)
- segmentation cavity — blastocoel.
- self-congratulatory — the expression or feeling of uncritical satisfaction with oneself or one's own accomplishment, good fortune, etc.; complacency.
- self-responsibility — the state or fact of being responsible, answerable, or accountable for something within one's power, control, or management.
- semidetached binary — a pair of stars that are so close together that mass transfer occurs from one to the other
- senatorial courtesy — the practice in the U.S. Senate of confirming only those presidential appointees approved by both senators from the state of the appointee, or by the senior senator of the president's party.
- sensory deprivation — the experimental or natural reduction of environmental stimuli, as by physical isolation or loss of eyesight, often leading to cognitive, perceptual, or behavioral changes, as disorientation, delusions, or panic.
- sequential analysis — the analysis of data obtained from a sample the size of which is not fixed in advance, but is selected based on the outcome of the sampling as it proceeds.
- sessional indemnity — the remuneration paid to a member of the Canadian parliament.
- sexual stereotyping — the formation or promotion of a fixed general idea or image of how men and women will behave
- signalling system 7 — (protocol) (SS7) A protocol suite used for communication with, and control of, telephone central office switches and their attached processors.
- simulation analysis — (language, simulation) (SIMAN) A simulation language, especially for manufacturing systems, developed by C. Dennis Pegden in 1983.
- single life annuity — A single life annuity is an annuity where only one life is covered.
- single-line display — a display that presents information in a single line
- smokestack industry — A smokestack industry is a traditional industry such as heavy engineering or manufacturing, rather than a modern industry such as electronics.
- social anthropology — study of human culture
- spherical astronomy — the branch of astronomy dealing with the determination of the positions of celestial bodies on the celestial sphere.
- st. anthony's cross — a T -shaped cross.
- st. lawrence seaway — a series of channels, locks, and canals between Montreal and the mouth of Lake Ontario, a distance of 182 miles (293 km), enabling most deep-draft vessels to travel from the Atlantic Ocean, up the St. Lawrence River, to all the Great Lakes ports: developed jointly by the U.S. and Canada.
- st.-germain-en-laye — a city in N France, near Paris: royal château and forest; treaties 1570, 1632, 1679, 1919.
- stanford university — (education) A University in the city of Palo Alto, California, noted for work in computing, especially artificial intelligence. See SAIL.
- stationary engineer — a person who runs or is licensed to run a stationary engine.
- stationers' company — a company or guild of the city of London composed of booksellers, printers, dealers in writing materials, etc., incorporated in 1557.
- stationery cupboard — a cupboard where things like paper, pens and paper clips are kept
- strawberry geranium — a plant, Saxifraga stolonifera (or S. sarmentosa), of the saxifrage family, native to eastern Asia, that has rounded, variegated leaves and numerous threadlike stolons and is frequently cultivated as a houseplant.
- strontium hydroxide — a white, slightly water-soluble powder, Sr(OH) 2 , or its crystalline octahydrate (strontium hydrate) used chiefly in the refining of beet sugar.
- subsistence economy — an economy which produces only enough output for its own consumption and does not attempt to accumulate wealth
- sulfureted hydrogen — hydrogen sulfide.
- superhigh frequency — any frequency between 3000 and 30,000 megahertz. Abbreviation: SHF.
- supplementary angle — either of two angles that added together produce an angle of 180°.
- supplementary story — follow-up (def 3b).
- suspension geometry — Suspension geometry is the geometric arrangement of the parts of a suspension system, and the value of the lengths and angles within it.