17-letter words containing e, c, h, o, a
- receding forehead — a forehead which slopes backwards
- republic of china — People's Republic of, a country in E Asia. 3,691,502 sq. mi. (9,560,990 sq. km). Capital: Beijing.
- republic-of-china — People's Republic of, a country in E Asia. 3,691,502 sq. mi. (9,560,990 sq. km). Capital: Beijing.
- respiratory chain — a series of mitochondrial proteins that transport electrons of hydrogen, released in the Krebs cycle, from acetyl coenzyme A to inhaled oxygen to form H 2 O: the energy released in the process is conserved as ATP.
- reticulate python — a python, Python reticulatus, of southeastern Asia and the East Indies, sometimes growing to a length of 32 feet (10 meters): usually considered to be the largest snake in the world.
- rhetorical stress — stress required by the meaning of a line, as distinguished from that required by the meter.
- rheumatoid factor — an antibody that is found in the blood of many persons afflicted with rheumatoid arthritis and that reacts against globulins in the blood.
- saint christopher — Saint, died a.d. c250, Christian martyr.
- san pedro channel — a strait between the mainland of SW California and Santa Catalina Island. About 20 miles (32 km) wide.
- saxe-coburg-gotha — a member of the present British royal family, from the establishment of the house in 1901 until 1917 when the family name was changed to Windsor.
- scarlet firethorn — a Eurasian evergreen, thorny shrub, Pyracantha coccinea, of the rose family, having white, hairy flower clusters and bright red berries.
- scattered showers — showers that are scattered across an area, or that occur at intervals throughout the day
- school attendance — a measure of the number of children who attend school and the amount of time they are present
- scrophulariaceous — belonging to the Scrophulariaceae, the figwort family of plants.
- second-hand smoke — from sb else's cigarette
- semi-biographical — of or relating to a person's life: He's gathering biographical data for his book on Milton.
- semidetached mode — (programming) A term used by COCOMO to describe a project development somewhere between organic and embedded. The team members have a mixture of experienced and inexperienced personnel. The software to be developed has some characteristics of both organic and embedded modes. Semidetached software can be as large as 300K DSIs.
- semisophisticated — somewhat sophisticated.
- shoestring tackle — a tackle made around the ankles of the ball carrier.
- shooting practice — practice in shooting for soldiers or other people who shoot guns
- shorter catechism — one of the two catechisms established by the Westminster Assembly in 1647, used chiefly in Presbyterian churches.
- shorthold tenancy — letting of a dwelling for between one and five years at a fair rent
- shouting distance — hailing distance.
- shower attachment — a device fixed to taps to make a shower
- shuttle diplomacy — diplomatic negotiations carried out by a mediator who travels back and forth between the negotiating parties.
- significant other — Sociology. a person, as a parent or peer, who has great influence on one's behavior and self-esteem.
- sister of charity — a member of one of several congregations of sisters founded in 1634 by St. Vincent de Paul.
- sixth commandment — “Thou shalt not kill”: sixth of the Ten Commandments.
- skate on thin ice — to place oneself in a dangerous or delicate situation
- smarandache logic — neutrosophic logic
- snatch one's time — to leave a job, taking whatever pay is due
- socratic elenchus — the drawing out of the consequences of a position in order to show them to be contrary to some accepted position
- sodium bichromate — a red or orange crystalline, water-soluble solid, Na 2 Cr 2 O 7 ⋅2H 2 O, used as an oxidizing agent in the manufacture of dyes and inks, as a corrosion inhibitor, a mordant, a laboratory reagent, in the tanning of leather, and in electroplating.
- sodium dichromate — a red or orange crystalline, water-soluble solid, Na 2 Cr 2 O 7 ⋅2H 2 O, used as an oxidizing agent in the manufacture of dyes and inks, as a corrosion inhibitor, a mordant, a laboratory reagent, in the tanning of leather, and in electroplating.
- south sea company — a British joint stock company that traded in South America in the 18th century. The South Sea Company took over the national debt in return for a monopoly of trade with the South Seas, causing feverish speculation in their stocks, and a financial crash in 1720 (the South Sea Bubble)
- south west africa — a former name of Namibia.
- south-west africa — a former name of Namibia.
- spaghettification — the theoretical stretching of an object as it encounters extreme differences in gravitational forces, especially those associated with a black hole.
- special schooling — the system of educating children with special needs in schools designed to meet their needs
- spectroheliograph — an apparatus for making photographs of the sun with a monochromatic light to show the details of the sun's surface and surroundings as they would appear if the sun emitted only that light.
- spherical polygon — a closed figure formed by arcs of great circles on a spherical surface.
- spit in the ocean — a variety of poker in which four cards are dealt face down to each player and one card, forming the fifth for all hands, is dealt face up in the center of the table, the exposed card and others of its denomination being wild cards.
- spongy parenchyma — the lower layer of the ground tissue of a leaf, characteristically containing irregularly shaped cells with relatively few chloroplasts and large intercellular spaces.
- stannous chloride — a white, crystalline, water-soluble solid, SnCl 2 ⋅2H 2 O, used chiefly as a reducing and tinning agent, and as a mordant in dyeing with cochineal.
- steamship company — a company which has a fleet of steamships
- support mechanism — any formal system or method of providing support or assistance
- swaddling clothes — cloth for wrapping around a baby
- sydenham's chorea — a form of chorea affecting children, often associated with rheumatic fever
- take the place of — replace, be a substitute for
- teacher education — training to become a teacher, usually at an institution of higher education