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19-letter words containing io

  • reserved occupation — in time of war, an occupation from which one will not be called up for military service
  • resonance radiation — radiation emitted by an atom or molecule, having the same frequency as that of an incident particle, as a photon, and usually involving a transition to the lowest energy level of the atom or molecule.
  • restriction enzymes — any of a group of enzymes that catalyze the cleavage of DNA molecules at specific sites: used for gene splicing in recombinant DNA technology and for chromosome mapping.
  • reticular formation — a network of neurons in the brainstem involved in consciousness, regulation of breathing, the transmission of sensory stimuli to higher brain centers, and the constantly shifting muscular activity that supports the body against gravity.
  • reversible reaction — a reaction that, depending on ambient conditions, can proceed in either of two directions: the production of the reaction products from the reactants, or the production of the original reactants from the formed reaction products. Compare equilibrium (def 4).
  • rhetorical question — a question asked solely to produce an effect or to make an assertion and not to elicit a reply, as “What is so rare as a day in June?”.
  • rio grande do norte — a state in E Brazil. 20,464 sq. mi. (53,000 sq. km). Capital: Natal.
  • sandwich generation — the generation of people still raising their children while having to care for their aging parents.
  • sanitary protection — Sanitary protection is sanitary towels or tampons.
  • saturation coverage — news coverage (of an event, etc) that is very thorough in order not to miss any details
  • scientific notation — a method for expressing a given quantity as a number having significant digits necessary for a specified degree of accuracy, multiplied by 10 to the appropriate power, as 1385.62 written as 1.386 × 10 3 .
  • seat belt tensioner — A seat belt tensioner is a device in a vehicle that pulls a seat belt tight if there is a sudden movement or stop.
  • secondary dentition — the permanent dentition
  • secondary education — education at high-school level
  • secondary infection — an infection resulting from another infection
  • secondary intention — See under intention (def 5b).
  • secondary-intention — an act or instance of determining mentally upon some action or result.
  • segmentation cavity — blastocoel.
  • selection committee — panel who appoint sb to a post
  • selective attention — mental focus on sth in particular
  • self identification — identification of oneself with some other person or thing.
  • self-administration — the management of any office, business, or organization; direction.
  • self-congratulation — the expression or feeling of uncritical satisfaction with oneself or one's own accomplishment, good fortune, etc.; complacency.
  • self-discrimination — an act or instance of discriminating, or of making a distinction.
  • self-identification — identification of oneself with some other person or thing.
  • self-interpretation — the act of interpreting; elucidation; explication: This writer's work demands interpretation.
  • self-reconstruction — an act of reconstructing.
  • self-representation — the act of representing.
  • self-transformation — the act or process of transforming.
  • sense of proportion — If someone has a sense of proportion, they know what is really important and what is not.
  • sensory deprivation — the experimental or natural reduction of environmental stimuli, as by physical isolation or loss of eyesight, often leading to cognitive, perceptual, or behavioral changes, as disorientation, delusions, or panic.
  • sentential function — an expression that contains one or more variables and becomes meaningful when suitable constant terms are substituted for them.
  • separation negative — Photography. a black-and-white negative of one of the additive primary colors used to form a color image.
  • sessional indemnity — the remuneration paid to a member of the Canadian parliament.
  • sexual reproduction — reproduction involving the union of gametes.
  • sheet flood erosion — Geology. erosion by sheets of running water, rather than by streams.
  • ship-to-shore radio — a radio that carries communications between land and sea
  • sign of aggregation — any of the signs used to indicate grouping in an algebraic expression: vinculum, bar, or raised horizontal line, ; a pair of parentheses, (a + b); a pair of brackets, [ a + b ]; or a pair of braces, { a + b }.
  • simulation analysis — (language, simulation)   (SIMAN) A simulation language, especially for manufacturing systems, developed by C. Dennis Pegden in 1983.
  • social organization — the structure of social relations within a group, usually the relations between its subgroups and institutions.
  • sodium thiosulphate — a white soluble substance used, in the pentahydrate form, in photography as a fixer to dissolve unchanged silver halides and also to remove excess chlorine from chlorinated water. Formula: Na2S2O3
  • solid of revolution — a three-dimensional figure formed by revolving a plane area about a given axis.
  • soviet of the union — the legislature of the former Soviet Union and its successor states, consisting of an upper house (Soviet of the Union or Council of the Union) whose delegates are elected on the basis of population, and a lower house (Soviet of Nationalities or Council of Nationalities) whose delegates are elected to represent the various nationalities.
  • spanish inquisition — the Inquisition in Spain, under state control from 1480 to 1834, marked by the extreme severity and cruelty of its proceedings in the 16th century.
  • specular reflection — Specular reflection is reflection of heat or light in which the angles of different parts of the surface are important.
  • speculative fiction — a broad literary genre encompassing any fiction with supernatural, fantastical, or futuristic elements
  • speeding conviction — a conviction for breaking the speed limit while driving a vehicle
  • stabilization print — a print made by the stabilization process.
  • staff-student ratio — the ratio of teachers to pupils or students in a school, college, or university
  • stagnation mastitis — caked breast.
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