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18-letter words containing r, i, s

  • interrelationships — Plural form of interrelationship.
  • interstellar space — astronomy: space between the stars
  • inverse square law — one of several laws relating two quantities such that one quantity varies inversely as the square of the other, as the law that the illumination produced on a screen by a point source varies inversely as the square of the distance of the screen from the source.
  • investment manager — financial advisor
  • invisible earnings — earnings from services provided rather than goods
  • involuntary muscle — muscle: contracts involuntarily
  • iridescent seaweed — a red alga, Irideae cordata, found on the Pacific coast of North America, having broad, leathery, iridescent blades.
  • iron (ii) sulphate — an iron salt with a saline taste, usually obtained as greenish crystals of the heptahydrate, which are converted to the white monohydrate above 100°C: used in inks, tanning, water purification, and in the treatment of anaemia. Formula: FeSO4
  • irreconcilableness — The quality of being irreconcilable; irreconcilability; incompatibility; incongruity.
  • irreproachableness — The quality or state of being irreproachable; integrity; innocence.
  • irresponsibilities — said, done, or characterized by a lack of a sense of responsibility: His refusal to work shows him to be completely irresponsible.
  • isabella of france — 1292–1358, wife (1308–27) of Edward II of England, whom, aided by her lover, Roger de Mortimer, she deposed; mother of Edward III
  • isidore of seville — Saint (Isidorus Hispalensis) a.d. c570–636, Spanish archbishop, historian, and encyclopedist.
  • isometric exercise — exercise or a program of exercises to strengthen specific muscles or shape the figure by pitting one muscle or part of the body against another or against an immovable object in a strong but motionless action, as by pressing the fist of one hand against the palm of the other or against a desk.
  • isometric joystick — (hardware)   Any kind of joystick where the input depends on the force exerted rather than the position of the control, e.g. TrackPoint.
  • isothermal process — a process that takes place without change in temperature.
  • israel ben eliezer — (Israel ben Eliezer"Besht") c1700–60, Ukrainian teacher and religious leader: founder of the Hasidic movement of Judaism.
  • isthmus of corinth — a narrow strip of land between the Gulf of Corinth and the Saronic Gulf: crossed by the Corinth Canal making navigation possible between the gulfs
  • italian corn salad — a southern European plant, Valerianella eriocarpa, of the valerian family, having edible, spoon-shaped, hairy leaves and dense clusters of pale-blue flowers.
  • iverson's language — APL, which went unnamed for many years.
  • james baird weaver — James Baird, 1833–1912, U.S. politician: congressman 1879–81, 1885–89.
  • japanese artichoke — Chinese artichoke.
  • japanese persimmon — the soft, orange or reddish, edible fruit of an Asian tree, Diospyros kaki.
  • john birch society — an ultraconservative organization, founded in December 1958 by Robert Welch, Jr., chiefly to combat alleged Communist activities in the U.S.
  • jose de san martin — José de [haw-se th e] /hɔˈsɛ ðɛ/ (Show IPA), 1778–1850, South American general and statesman, born in Argentina: leader in winning independence for Argentina, Peru, and Chile; protector of Peru 1821–22.
  • junior high school — a school attended after elementary school and usually consisting of grades seven through nine.
  • justice department — the United States federal department for enforcing federal laws
  • keep your shirt on — refrain from losing your temper (often used as an exhortation to another)
  • king james version — Authorized Version.
  • king of the forest — the oak tree.
  • king william's war — the war (1689–97) in which England and its American colonies and Indian allies opposed France and its Indian allies and which constituted the American phase of the War of the Grand Alliance.
  • king's regulations — (in Britain and the Commonwealth when the sovereign is male) the code of conduct for members of the armed forces that deals with discipline, aspects of military law, etc
  • kirkcudbrightshire — a historic county in SW Scotland.
  • kirtland's warbler — a wood warbler, Dendroica kirtlandii, breeding only in north-central Michigan and wintering in the Bahamas, bluish gray above, striped with black and pale yellow below: an endangered species.
  • kitchen-sink drama — a type of drama of the 1950s depicting the sordid aspects of domestic reality
  • knotted cranesbill — a British wildflower, Geranium nodosum, an meadow geranium with bright pink or purple flowers
  • lactose intolerant — cannot digest milk
  • lambda abstraction — A term in lambda-calculus denoting a function. A lambda abstraction begins with a lower-case lambda (represented as "\" in this document), followed by a variable name (the "bound variable"), a full stop and a lambda expression (the body). The body is taken to extend as far to the right as possible so, for example an expression, \ x . \ y . x+y is read as \ x . (\ y . x+y). A nested abstraction such as this is often abbreviated to: \ x y . x + y The lambda expression (\ v . E) denotes a function which takes an argument and returns the term E with all free occurrences of v replaced by the actual argument. Application is represented by juxtaposition so (\ x . x) 42 represents the identity function applied to the constant 42. A lambda abstraction in Lisp is written as the symbol lambda, a list of zero or more variable names and a list of zero or more terms, e.g. (lambda (x y) (plus x y)) Lambda expressions in Haskell are written as a backslash, "\", one or more patterns (e.g. variable names), "->" and an expression, e.g. \ x -> x.
  • language universal — a trait or property of language that exists, or has the potential to exist, in all languages.
  • last in, first out — The expression last in, first out is used to say that the last person who started work in an organization should be the first person to leave it, if fewer people are needed.
  • last-in, first-out — an inventory plan based on the assumption that materials constituting manufacturing costs should be carried on the books at the market price of the last lot received. Abbreviation: LIFO. Compare first-in, first-out.
  • lateral resistance — resistance to sidewise motion caused by wind pressure, supplied by the immersed portion of a hull of a vessel.
  • law of segregation — the principle, originated by Gregor Mendel, stating that during the production of gametes the two copies of each hereditary factor segregate so that offspring acquire one factor from each parent.
  • learned profession — any of the three vocations of theology, law, and medicine, commonly held to require highly advanced learning. Compare profession (def 1).
  • legislative branch — the branch of government having the power to make laws; the legislature.
  • lenticular process — a method for producing images with a three-dimensional effect by photographing on lenticulated film.
  • lesser whitethroat — an Old World warbler, Sylvia curruca, having a greyish-brown plumage with a white throat and underparts
  • let oneself in for — If you say that you did not know what you were letting yourself in for when you decided to do something, you mean you did not realize how difficult, unpleasant, or expensive it was going to be.
  • lifesaving service — a private organization or government agency for general marine rescue operations.
  • lightning arrester — a device for preventing damage to radio, telephonic, or other electric equipment from lightning or other high-voltage currents, using spark gaps to carry the current to the ground without passing through the device.
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