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18-letter words containing t, r, i, n, o, c

  • skin friction drag — aerodynamic resistance or drag due to the contact of moving air with the surface of an airplane, a glider, etc.
  • sling psychrometer — a psychrometer so designed that the wet-bulb thermometer can be ventilated, to expedite evaporation, by whirling in the air.
  • social environment — the environment developed by humans as contrasted with the natural environment; society as a whole, especially in its relation to the individual.
  • societal marketing — marketing that takes into account society's long-term welfare
  • society of friends — a Christian denomination, founded in England c. 1650 by George Fox, that has no formal creed, liturgy, or priesthood and rejects violence in human relations, esp. warfare
  • sodium bicarbonate — a white, crystalline, water-soluble solid, in powder or granules, NaHCO 3 , usually prepared by the reaction of soda ash with carbon dioxide or obtained from the intermediate product of the Solvay process by purification: used chiefly in the manufacture of sodium salts, baking powder, and beverages, as a laboratory reagent, as a fire extinguisher, and in medicine as an antacid.
  • solvent extraction — Solvent extraction is the separation of a particular substance from a mixture by dissolving that substance in a solvent that will dissolve it, but which will not dissolve any other substance in the mixture.
  • sonic depth finder — a sonar instrument that uses echolocation to measure depths under water.
  • speech recognition — Computers. the computerized analysis of spoken words in order to identify the speaker, as in security systems, or to respond to voiced commands: the analysis is performed by finding patterns in the spectrum of the incoming sound and comparing them with stored patterns of elements of sound, as phones, or of complete words.
  • sperry corporation — (company)   The company which merged with the Burroughs Corporation to form Unisys Corporation. Divisions included Sperry Univac, Sperry Flight Systems, and others. Some of these were sold off after the merger.
  • stationary bicycle — an exercise bike
  • steering committee — a committee, especially of a deliberative or legislative body, charged with preparing the agenda of a session.
  • strathclyde region — a former local government region in W Scotland: formed in 1975 from Glasgow, Renfrewshire, Lanarkshire, Buteshire, Dunbartonshire, and parts of Argyllshire, Ayrshire, and Stirlingshire; replaced in 1996 by the council areas of Glasgow, Renfrewshire, East Renfrewshire, Inverclyde, North Lanarkshire, South Lanarkshire, Argyll and Bute, East Dunbartonshire, West Dunbartonshire, North Ayrshire, South Ayrshire, and East Ayrshire
  • strong interaction — the interaction between gluons and between gluons and quarks that is responsible for the strong force.
  • student councillor — a student who is a member of a council or body representing the interests of students at a school, university or college
  • subordinate clause — a clause that modifies the principal clause or some part of it or that serves a noun function in the principal clause, as when she arrived in the sentence I was there when she arrived or that she has arrived in the sentence I doubt that she has arrived.
  • supporting actress — an actress playing a supporting role
  • symmetric function — a polynomial in several indeterminates that stays the same under any permutation of the indeterminates.
  • synthetic geometry — elementary geometry, as distinct from analytic geometry.
  • take out insurance — take out insurance against something
  • teacher evaluation — the process of vetting teachers to maintain teaching standards
  • tectorial membrane — membrane in the inner ear that covers the organ of Corti
  • telephone receiver — a device, as in a telephone, that converts changes in an electric current into sound.
  • tender loving care — considerate and kindly care, as of someone who is ill, upset, etc
  • tertiary education — education, following secondary education at a school, at a college or university
  • the dark continent — a term for Africa when it was relatively unexplored
  • the electronic age — the electronic age began when electronic equipment, including computers came into use
  • the kinetic theory — a theory of gases postulating that they consist of particles of negligible size moving at random and undergoing elastic collisions
  • the north atlantic — the northern part of the Atlantic Ocean, especially the waters separating North America and Europe
  • the uncircumcision — the gentiles
  • the-dark-continent — Africa: so called, especially during the 19th century, because little was known about it.
  • thermionic current — an electric current produced by the flow of thermions.
  • thermoluminescence — phosphorescence produced by the heating of a substance.
  • thioarsenious acid — any of a group of hypothetical acids, H3AsS3, HAsS2, and H4As2S5, known only in the forms of their salts
  • thirty-second note — a note having 1/32 of the time value of a whole note; demi-semiquaver.
  • thirty-second rest — a rest equal in value to a thirty-second note.
  • to cast aspersions — If you cast aspersions on someone or something, you suggest that they are not very good in some way.
  • to close your mind — If you close your mind to something, you deliberately do not think about it or pay attention to it.
  • to cross your mind — If you say that an idea or possibility never crossed your mind, you mean that you did not think of it.
  • to scrape a living — If you say that someone scrapes a living or scratches a living, you mean that they manage to earn enough to live on, but it is very difficult. In American English, you say they scrape out a living or scratch out a living.
  • traditional policy — a life assurance policy in which the policyholder's premiums are paid into a general fund and his or her investment benefits are calculated according to actuarial formulae
  • traffic controller — a person whose job is to control the flow of air traffic
  • translation agency — an organization that provide people to translate speech or writing into a different language
  • transmogrification — to change in appearance or form, especially strangely or grotesquely; transform.
  • transrectification — rectification occurring in one circuit as a result of the application of an alternating voltage to another circuit.
  • transverse section — cross section (def 1).
  • triangle of forces — a triangle whose sides represent the magnitudes and directions of three forces whose resultant is zero and which are therefore in equilibrium
  • trickle irrigation — drip irrigation.
  • two-tier financing — a form of lending in which the debt is divided into two separate parts, as in a first and second mortgage held by an individual on a single property
  • ultrasonic testing — the scanning of material with an ultrasonic beam, during which reflections from faults in the material can be detected: a powerful nondestructive test method
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