17-letter words containing h, e, s, p
- 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.
- reverse apartheid — a perceived bias against White people following the end of Apartheid
- reza shah pahlavi — Muhammad Riza (or Reza) [ri-zah] /rɪˈzɑ/ (Show IPA), 1919–80, shah of Iran 1941–79; in exile after 1979 (son of Riza Shah Pahlavi).
- rhodope mountains — a mountain range in SE Europe, in the Balkan Peninsula extending along the border between Bulgaria and Greece. Highest peak: Golyam Perelik (Bulgaria), 2191 m (7188 ft)
- right parenthesis — (character) ")". ASCII character 41. Common names: right paren; right parenthesis; right; close; thesis ("(" = paren); close paren; close parenthesis; right parenthesis; right banana. Rare: already ("(" = so); rparen; ITU-T: closing parenthesis; close round bracket, right round bracket, INTERCAL: wane ("(" = wax); unparenthisey ("(" = parenthisey); right ear. Paired with left parenthesis.
- 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.
- schematic capture — The process of entering the logical design of an electronic circuit into a CAE system by creating a schematic representation of components and interconnections.
- scheme repository — A collection of free Scheme programs.
- schizophrenogenic — causative of schizophrenia.
- schmidt telescope — a wide-angle reflecting telescope used primarily for astronomical photography, in which spherical aberration and coma are reduced to a minimum by means of a spherical mirror with a corrector plate near its focus.
- schwedler's maple — a variety of the Norway maple, Acer platanoides schwedleri, producing red leaves that subsequently turn green.
- scrape the barrel — to be forced to use one's last and weakest resource
- scrophulariaceous — belonging to the Scrophulariaceae, the figwort family of plants.
- seat-of-the-pants — using or based on experience, instinct, or guesswork: a seat-of-the-pants management style.
- semi-biographical — of or relating to a person's life: He's gathering biographical data for his book on Milton.
- semisophisticated — somewhat sophisticated.
- september weather — weather characteristic of the month of September, esp in being unpredictable as summer is ending and autumn is beginning
- sexual dimorphism — the condition in which the males and females in a species are morphologically different, as with many birds.
- sheepswool sponge — wool sponge.
- shepherd's needle — a European umbelliferous plant, Scandix pectenveneris, with long needle-like fruits
- shetland pullover — a thick woollen sweater made from Shetland wool
- shetland sheepdog — one of a breed of small sheepdogs resembling a miniature collie, raised originally in the Shetland Islands.
- shipping articles — articles of agreement.
- shooting practice — practice in shooting for soldiers or other people who shoot guns
- shopping precinct — pedestrian area with shops
- show sb the ropes — If you show someone the ropes, you show them how to do a particular job or task.
- shutter-preferred — of or relating to a semiautomatic exposure system in which the photographer presets the shutter speed and the camera selects the aperture.
- shuttle diplomacy — diplomatic negotiations carried out by a mediator who travels back and forth between the negotiating parties.
- slap on the wrist — a sharp blow or smack, especially with the open hand or with something flat.
- 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)
- southampton water — an inlet of the English Channel in S England
- southern sporades — a group of Greek islands in the Aegean, including the Dodecanese, lying off the SW coast of Turkey
- spaghetti western — a low-budget western movie shot in Italy or Spain, usually with Italian actors and an American star.
- spaghettification — the theoretical stretching of an object as it encounters extreme differences in gravitational forces, especially those associated with a black hole.
- spanish influenza — the pandemic respiratory infection that spread throughout the world during 1917–18.
- special schooling — the system of educating children with special needs in schools designed to meet their needs
- specific humidity — the ratio of the mass of water vapor in air to the total mass of the mixture of air and water vapor.
- 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.
- spectrohelioscope — a spectroheliograph.
- spectrophotometer — an instrument for making photometric comparisons between parts of spectra.
- spectrophotometry — an instrument for making photometric comparisons between parts of spectra.
- speech correction — the reeducation of speech habits that deviate from accepted speech standards.
- speech difficulty — a problem encountered in speaking
- speech impediment — speaking disorder
- spherical polygon — a closed figure formed by arcs of great circles on a spherical surface.
- spin one's wheels — a circular frame or disk arranged to revolve on an axis, as on or in vehicles or machinery.
- spinal anesthesia — interruption of conduction of nerve impulses by the injection of an anesthetic into the spinal canal that reduces sensitivity to pain without loss of consciousness.
- spiny-headed worm — any of a small group of endoparasites of the phylum Acanthocephala, as larvae parasitic in insects and crustaceans and as adults in various vertebrates.
- spiritual healing — faith healing