17-letter words containing c, h, a, t, s
- nuclear threshold — the point in war at which a combatant brings nuclear weapons into use
- omphalomesenteric — (anatomy) Of or pertaining to the umbilicus and mesentery.
- on the pig's back — successful; established
- opisthobranchiate — (zoology) Of or pertaining to the Opisthobranchiata.
- organic chemistry — the branch of chemistry, originally limited to substances found only in living organisms, dealing with the compounds of carbon.
- overhead camshaft — a camshaft in an automotive engine that is located in the cylinder head over the engine block rather than in the block. Abbreviation: OHC.
- oystershell scale — a scale insect, Lepidosaphes ulmi, having a scale shaped like the shell of an oyster, which infests various deciduous trees and shrubs.
- pacific northwest — the region of North America lying north of the Columbia River and west of the Rockies
- paleobiochemistry — the study of biochemical processes that occurred in fossil life forms.
- pashmina politics — the adoption of political policies immediately after they have gone out of fashion
- patriarchal cross — a Latin cross having a shorter crosspiece above the customary one.
- perpetual spinach — a variety of spinach that keeps producing edible leaves
- personality clash — friction between two people who have different personalities or points of view
- petrarchan sonnet — a sonnet form popularized by Petrarch, consisting of an octave with the rhyme scheme abbaabba and of a sestet with one of several rhyme schemes, as cdecde or cdcdcd.
- phenyl isocyanate — a liquid reagent, C 7 H 5 NO, having an unpleasant, irritating odor: used chiefly for identifying alcohols and amines.
- photodissociation — the dissociation or breakdown of a chemical compound by radiant energy.
- phototherapeutics — the branch of therapeutics that deals with the curative use of light rays.
- physical activity — sth involving use of the body
- physical training — fitness coaching
- pincushion cactus — any of various low-growing, spiny cacti of the genus Mammillaria.
- pocket battleship — a small heavily armed and armored warship serving as a battleship because of limitations imposed by treaty.
- point of purchase — designating or in use at a retail outlet where an item can be purchased; point-of-sale: point-of-purchase displays to entice the buyer.
- point-of-purchase — designating or in use at a retail outlet where an item can be purchased; point-of-sale: point-of-purchase displays to entice the buyer.
- polioencephalitis — a disease characterized by inflammation of the gray matter of the brain.
- pseudo-historical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- pseudo-humanistic — a person having a strong interest in or concern for human welfare, values, and dignity.
- psychodiagnostics — the study and evaluation of character or personality in terms of behavioral and anatomical traits, as gesture, posture and physiognomy.
- psychoeducational — designating or of psychological methods, as intelligence tests, used in evaluating learning ability
- psychotherapeutic — psychotherapy.
- pythagorean scale — the major scale as derived acoustically by Pythagoras from the perfect fifth.
- quantum chemistry — the application of quantum mechanics to the study of chemical phenomena.
- quantum mechanics — a theory of the mechanics of atoms, molecules, and other physical systems that are subject to the uncertainty principle. Abbreviation: QM.
- racial harassment — persecution on the basis of race
- 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.
- rhetorical stress — stress required by the meaning of a line, as distinguished from that required by the meter.
- rheumatic disease — any of a group of diseases of the connective tissue, of uncertain causes, including rheumatoid arthritis, gout, and rheumatic fever
- rich site summary — (web, standard) (RSS, blog, feed) A family of standard web document types containing regularly updated, short articles or news items. RSS documents (generally called "RSS feeds", "news feeds" or just "feeds") can be read with an RSS reader like BottomFeeder or Feedly. These are sometimes called "aggregators" because they combine multiple RSS feeds which the user can browse as a single list. The RSS reader tracks which articles the use has read, and is typically set to show only new articles, hence the idea of a "feed" or flow of new items. Most RSS feeds are based on RDF. RDF is a structured document format for describing textual resources such as news articles available on the web. RSS originally stood for "RDF Site Summary" as it was designed to provide short descriptions of (changes to) a website. Because it provides a standard way to deliver, or "syndicate", news or updates from one site to another, RSS is sometimes expanded as "Really Simple Syndication". It is closely associated with blogs, most of which provide an RSS feed of articles.
- roman catholicism — the faith, practice, and system of government of the Roman Catholic Church.
- 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
- saint christopher — Saint, died a.d. c250, Christian martyr.
- sawatch mountains — range of the Rocky Mountains, in central Colo.: highest peak, Elbert
- 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.
- scarlet lightning — scarlet lychnis.
- scattered showers — showers that are scattered across an area, or that occur at intervals throughout the day
- 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.
- schiff-s--reagent — a solution of rosaniline and sulfurous acid in water, used to test for the presence of aldehydes.
- school attendance — a measure of the number of children who attend school and the amount of time they are present
- scrape the barrel — to be forced to use one's last and weakest resource
- scratch 'n' sniff — denoting a product that releases a smell when scratched