12-letter words containing s, e, c, r
- apple sucker — a small homopterous insect, Psyllia mali, originally of Europe, that is a serious pest of apple crops.
- appreciators — to be grateful or thankful for: They appreciated his thoughtfulness.
- arborescence — treelike in size and form.
- arc cosecant — the angle, measured in radians, that has a cosecant equal to a given number. Symbol: csc −1. Abbreviation: arc csc;
- arc spectrum — a spectrum formed from the light produced by an electric arc, characteristic of the gas or vapor through which the arc passes.
- archdiocesan — Relating to an archdiocese.
- archdioceses — Plural form of archdiocese.
- arched truss — a truss having an archlike form but unlike a true arch in that it is free to move horizontally at its base, as in expanding or contracting because of temperature changes.
- archenterons — Plural form of archenteron.
- archeologist — archaeology.
- archerfishes — Plural form of archerfish.
- archesporial — the primitive cell, or group of cells, that give rise to the cells from which spores are derived.
- archesporium — archespore.
- archibenthos — the ocean bottom between the littoral and abyssal zones: from depths of approximately 200 feet (60 meters) to 3300 feet (1000 meters).
- archipelagos — Plural form of archipelago.
- archive site — (networking) (Or "FTP site", "FTP archive") An Internet host where program source, documents, e-mail or news messages are stored for public access via anonymous FTP, Gopher, web or other document distribution system. There may be several archive sites (mirrors) for, e.g., a Usenet newsgroup though one may be recognised as the main one. FTP servers were common on the Internet for about ten years but have been largely replaced by web servers since the invention of the World-Wide Web and its HTTP protocol. Some well-known archive sites included Imperial College, UK, UUNET, USA, GNU archive site. The archie service attempted to index the contents of FTP archives, foreshadowing the indexing of the web by Google and others.
- argillaceous — (of sedimentary rocks and deposits) composed of very fine-grained material, such as clay, shale, etc
- armada chest — an iron or iron-bound strongbox of the 17th or 18th century.
- armed forces — The armed forces or the armed services of a country are its military forces, usually the army, navy, marines, and air force.
- arming chest — a chest for holding armor and weapons.
- arsenic acid — a white poisonous soluble crystalline solid used in the manufacture of arsenates and insecticides. Formula: H3AsO4
- arthroscopes — Plural form of arthroscope.
- ascertaining — to find out definitely; learn with certainty or assurance; determine: to ascertain the facts.
- ash-coloured — silver-grey in colour
- asking price — The asking price of something is the price which the person selling it says that they want for it, although they may accept less.
- aspect ratio — the ratio of width to height of the picture on a television or cinema screen
- astrochemist — (chemistry, astronomy) A chemist or astronomer whose speciality is astrochemistry.
- asymmetrical — Something that is asymmetrical has two sides or halves that are different in shape, size, or style.
- asynchronies — a lack of synchronism or coincidence in time.
- at a stretch — with some difficulty; by making a special effort
- atmospherics — Atmospherics are elements in something such as a piece of music or a book which create a certain atmosphere.
- autochangers — Plural form of autochanger.
- autodestruct — likely to or possessing the power to destroy or obliterate itself or its possessor
- awe-stricken — filled with awe.
- axisymmetric — being symmetrical around an axis
- b chromosome — a type of densely staining chromosome of uncertain biological function, found in many plant and animal species.
- b-s particle — a neutral meson with a mass 10,507 times that of the electron and a mean lifetime of approximately 1.6 X 10 -12 seconds.
- bachelorship — the state of being a bachelor; bachelorhood
- back scatter — the deflection of nuclear particles or of radiation in a scattering process through an angle greater than 90°.
- back stretch — the straight part of a race track opposite the part leading to the finish line.
- back-slapper — the practice of making a loud and effusive display of friendliness, cordiality, etc., as by slapping persons on the back.
- backbenchers — Plural form of backbencher.
- backbreakers — Plural form of backbreaker.
- backpressure — a resistant pressure exerted by liquid or gas against the forward motion or flow of an exhaust or pipe system: Careful control of backpressure ensures an even supply of oil from the well.
- backswimmers — Plural form of backswimmer.
- backtrackers — Plural form of backtracker.
- backwardness — toward the back or rear.
- bacon-slicer — a machine for cutting bacon into slices
- bactericides — Plural form of bactericide.
- bacteriostat — any substance that arrests the growth or reproduction of bacteria but does not kill them