19-letter words containing d, r, a, f
- indefinite integral — a representation, usually in symbolic form, of any function whose derivative is a given function.
- index of refraction — a number indicating the speed of light in a given medium as either the ratio of the speed of light in a vacuum to that in the given medium (absolute index of refraction) or the ratio of the speed of light in a specified medium to that in the given medium (relative index of refraction) Symbol: n.
- index-tracking fund — an investment fund that is administered so that its value changes in line with a given share index
- juan de fuca strait — strait between Vancouver Island and NW Wash.: c. 100 mi (161 km) long
- judicial conference — a conference of judges held to discuss improvements in methods or judicial procedure through court rules or otherwise.
- kingdom of lorraine — an early medieval kingdom on the Meuse, Moselle, and Rhine rivers: later a duchy
- land of opportunity — Arkansas (used as a nickname).
- landrum-griffin act — an act of Congress (1959) outlawing secondary boycotts, requiring public disclosure of the financial records of unions, and guaranteeing the use of secret ballots in union voting.
- leading aircraftman — the rank above aircraftman
- line of demarcation — a separation between things deemed to be distinct
- load-bearing printf — (programming, humour) The kind of bug present in a program which works correctly when producing debug output but fails when the debugging is turned off. The expression combines load-bearing wall and printf as used in debugging by printf.
- maratha confederacy — a loose league of states in central and western India, c1750–1818.
- master of foxhounds — the person responsible for the conduct of a fox hunt and to whom all members of the hunt and its staff are responsible. Abbreviation: M.F.H.
- means of production — resources: equipment, workers
- medical certificate — a document stating the result of a satisfactory medical examination
- mediterranean fever — brucellosis.
- midafternoon prayer — the fifth of the seven canonical hours; none
- most favored nation — a nation to which privileges of trade are extended under a government policy of giving the same privileges to all nations that are given to any one of them, sometimes depending on whether certain conditions, as of reciprocity, are met
- most-favored-nation — of or relating to the status, treatment, terms, etc., that are embodied in or conferred by a most-favored-nation clause.
- mother-of-thousands — strawberry geranium.
- nordrhein-westfalen — German name of North Rhine-Westphalia.
- norfolk island pine — a coniferous evergreen tree, Araucaria heterophylla (or A. excelsa), having whorled branches and needlelike foliage, widely cultivated as a houseplant.
- of one's own accord — to be in agreement or harmony; agree.
- order of the garter — the highest order of British knighthood, instituted by Edward III about 1348.
- out of the ordinary — of no special quality or interest; commonplace; unexceptional: One novel is brilliant, the other is decidedly ordinary; an ordinary person.
- peroxysulfuric acid — persulfuric acid (def 1).
- plastic deformation — In plastic deformation a material changes shape when a stress is applied to it and does not go back to its original state when the stress is removed.
- pocket-handkerchief — handkerchief (def 1).
- post-and-rail fence — a fence constructed of upright wooden posts with horizontal timber slotted through it
- pride-of-california — a shrubby plant, Lathyrus splendens, of the legume family, native to southern California, having showy clusters of pale rose-pink, violet, or magenta flowers and large, smooth, beaked pods.
- production platform — offshore power station
- professional advice — advice given by someone trained in a particular and relevant profession or job
- profitability study — a study of how much profit a company, organization, etc, makes or how profitable it is
- pseudo-professional — following an occupation as a means of livelihood or for gain: a professional builder.
- radioactive fallout — the settling to the ground of airborne particles ejected into the atmosphere from the earth by explosions, eruptions, forest fires, etc., especially such settling from nuclear explosions (radioactive fallout) Compare rainout.
- radius of curvature — the absolute value of the reciprocal of the curvature at a point on a curve.
- rapture of the deep — nitrogen narcosis.
- refreshable display — braille display
- republic of ireland — John, 1838–1918, U.S. Roman Catholic clergyman and social reformer, born in Ireland: archbishop of St. Paul, Minn., 1888–1918.
- rural free delivery — former name for rural delivery service. Abbreviation: R.F.D.
- san fernando valley — valley in SW Calif., partly in NW Los Angeles: c. 260 sq mi (673 sq km)
- sea floor spreading — a process in which new ocean floor is created as molten material from the earth's mantle rises in margins between plates or ridges and spreads out.
- sea-floor spreading — a process in which new ocean floor is created as molten material from the earth's mantle rises in margins between plates or ridges and spreads out.
- secondary infection — an infection resulting from another infection
- self-administration — the management of any office, business, or organization; direction.
- self-aggrandizement — increase of one's own power, wealth, etc., usually aggressively.
- self-discrimination — an act or instance of discriminating, or of making a distinction.
- sir wilfrid laurier — Sir Wilfrid [wil-frid;; French weel-freed] /ˈwɪl frɪd;; French wilˈfrid/ (Show IPA), 1841–1919, Canadian statesman: prime minister 1896–1911.
- south african dutch — the Boers.
- spread oneself thin — to draw, stretch, or open out, especially over a flat surface, as something rolled or folded (often followed by out).