17-letter words containing c, r, i, o, s
- rack one's brains — to strain in mental effort, esp to remember something or to find the solution to a problem
- radioactive waste — the radioactive by-products from the operation of a nuclear reactor or from the reprocessing of depleted nuclear fuel.
- radioluminescence — luminescence induced by nuclear radiation.
- railroad crossing — place for vehicles to cross train tracks
- recoil escapement — anchor escapement.
- reconstructionism — a 20th-century movement among U.S. Jews, founded by Rabbi Mordecai M. Kaplan, advocating that Judaism, being a culture and way of life as well as a religion, is in sum a religious civilization requiring constant adaptation to contemporary conditions so that Jews can identify more readily and meaningfully with the Jewish community.
- reconstructionist — an advocate or supporter of Reconstruction or Reconstructionism.
- recording session — a period of time devoted to recording music in a studio
- recovery position — a position in which an unconscious person can be lain on the floor, which minimises them from further risk
- recreationalist's — recreationist.
- recrystallization — to become crystallized again.
- recursion formula — a formula for determining the next term of a sequence from one or more of the preceding terms.
- recursive acronym — (convention) A hackish (and especially MIT) tradition is to choose acronyms and abbreviations that refer humorously to themselves or to other acronyms or abbreviations. The classic examples were two MIT editors called EINE ("EINE Is Not Emacs") and ZWEI ("ZWEI Was EINE Initially"). More recently, there is a Scheme compiler called LIAR (Liar Imitates Apply Recursively), and GNU stands for "GNU's Not Unix!" - and a company with the name CYGNUS, which expands to "Cygnus, Your GNU Support". See also mung.
- reduce to silence — If someone or something reduces you to silence, they make you feel so upset or confused that you cannot speak.
- refuse collection — the collection of rubbish and waste, usually in a rubbish or refuse truck, before final disposal
- registered office — official business address
- registered stocks — stocks officially registered to the name of the owner
- renaissance woman — a woman who has acquired profound knowledge or proficiency in more than one field.
- repertory society — a group that supports amateur performances of plays by its members
- rescue operations — operations or organized procedures to bring people or a person out of danger, attack, harm, etc
- 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.
- respiratory tract — the passages through which air enters and leaves the body
- resurrection fern — a drought-resistant, evergreen, epiphytic fern, Polypodium polypodioides, of subtropical to tropical America, appearing to be a ball of coiled, dead leaves in the dry season but reviving with moisture.
- retrocessionaires — a reinsurance company that accepts or takes a retrocession.
- revascularization — the restoration of the blood circulation of an organ or area, achieved by unblocking obstructed or disrupted blood vessels or by surgically implanting replacements.
- rhetorical stress — stress required by the meaning of a line, as distinguished from that required by the meter.
- rhinoceros beetle — any of several scarabaeid beetles, especially of the genus Dynastes, which comprises the largest beetles, characterized by one or more horns on the head and prothorax.
- road construction — the building of roads
- rocket propulsion — propulsion of an object by thrust developed by a rocket.
- roman catholicism — the faith, practice, and system of government of the Roman Catholic Church.
- rotation of crops — a system of rotating in a fixed order the kinds of crops, as grain or grass, grown in the same field, to maintain soil fertility
- roving commission — authority or power given in a general area, without precisely defined terms of reference
- rush-hour traffic — the large number of vehicles that move along roads, travelling to or from work at the beginning and end of the working day
- sacrifice paddock — a grassed area allowed to be grazed completely, to be cultivated and resown later
- sacrificial anode — Chemistry. an anode that is attached to a metal object subject to electrolysis and is decomposed instead of the object.
- safety precaution — a precaution that is taken in order to ensure that something is safe and not dangerous
- saint christopher — Saint, died a.d. c250, Christian martyr.
- saint croix river — Also called Santa Cruz. a U.S. island in the N Lesser Antilles: the largest of the Virgin Islands. 82 sq. mi. (212 sq. km).
- san francisco bay — a bay in W California: the harbor of San Francisco; connected with the Pacific by the Golden Gate strait. 50 miles (80 km) long; 3–12 miles (5–19 km) wide.
- sandro botticelli — Sandro [san-droh,, sahn-;; Italian sahn-draw] /ˈsæn droʊ,, ˈsɑn-;; Italian ˈsɑn drɔ/ (Show IPA), (Alessandro di Mariano dei Filipepi) 1444?–1510, Italian painter.
- scarlet firethorn — a Eurasian evergreen, thorny shrub, Pyracantha coccinea, of the rose family, having white, hairy flower clusters and bright red berries.
- scheme repository — A collection of free Scheme programs.
- schizophrenogenic — causative of schizophrenia.
- scientific theory — a coherent group of propositions formulated to explain a group of facts or phenomena in the natural world and repeatedly confirmed through experiment or observation: the scientific theory of evolution.
- scrophulariaceous — belonging to the Scrophulariaceae, the figwort family of plants.
- second derivative — the derivative of the derivative of a function: Acceleration is the second derivative of distance with respect to time.
- second generation — being the second generation of a family to be born in a particular country: the oldest son of second-generation Americans.
- second-generation — being the second generation of a family to be born in a particular country: the oldest son of second-generation Americans.
- secondary glazing — insulation by means of a second pane of glass, or a sheet of plastic: a simple form of double glazing
- secondary quality — one of the qualities attributed by the mind to an object perceived, such as color, temperature, or taste.