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15-letter words containing d, u, r, o, m

  • odd permutation — a permutation of a set of n elements, x 1 , x 2 , …, xn, which permutes the product of all differences of the form (xi – xj), where i is less than j, into the negative of the product.
  • ordinal numbers — Also called ordinal numeral. any of the numbers that express degree, quality, or position in a series, as first, second, and third (distinguished from cardinal number).
  • outdoorsmanship — a person devoted to outdoor sports and recreational activities, as hiking, hunting, fishing, or camping.
  • pamprodactylous — having all four toes directed forward, as in swifts and colies.
  • pandorae fretum — an area in the southern hemisphere of Mars.
  • parent compound — a compound from which derivatives may be obtained.
  • primary product — a product consisting of a natural raw material; an unmanufactured product
  • primordial soup — the seas and atmosphere as they existed on earth before the existence of life, consisting primarily of an oxygen-free gaseous mixture containing chiefly water, hydrogen, methane, ammonia, and carbon dioxide.
  • product manager — sb who oversees product development
  • protonephridium — a tubular, excretory structure in certain invertebrates, as flatworms, rotifers, and some larvae, usually ending internally in flame cells and having an external pore
  • pseudo-dramatic — of or relating to the drama.
  • pseudo-military — of, for, or pertaining to the army or armed forces, often as distinguished from the navy: from civilian to military life.
  • pseudo-romantic — of, relating to, or of the nature of romance; characteristic or suggestive of the world of romance: a romantic adventure.
  • put a damper on — To put a damper on something means to have an effect on it which stops it being as enjoyable or as successful as it should be.
  • radioimmunology — the study of biological substances or processes with the aid of antigens or antibodies labeled with a radioactive isotope.
  • redocumentation — The creation or revision of a semantically equivalent representation within the same relative abstraction level. The resulting forms of representation are usually considered alternate views intended for a human audience.
  • residual income — the remaining income (of a business or person) after necessary debts, expenses, etc, have been paid
  • reynolds number — a dimensionless number, vρl/η, where v is the fluid velocity, ρ the density, η the viscosity and l a dimension of the system. The value of the number indicates the type of fluid flow
  • rod pumped well — A rod pumped well is a well with a nodding donkey to remove fluid mechanically.
  • round-trip time — (RTT) A measure of the current delay on a network, found by timing a packet bounced off some remote host. This can be done with ping -s.
  • routeing domain — (networking)   (US "routing") A set of routers that exchange routeing information within an administrative domain.
  • rutherford atom — the atom postulated as analogous to the solar system, with electrons revolving around a small, central, positive nucleus that constitutes practically the entire mass of the atom
  • sacred mushroom — any of various hallucinogenic mushrooms, esp species of Psilocybe and Amanita, that have been eaten in rituals in various parts of the world
  • sclerodermatous — Zoology. covered with a hardened tissue, as scales.
  • semidocumentary — a film or television programme that is fictional but includes many factual events or details
  • sigmoid flexure — Zoology. an S -shaped curve in a body part.
  • sodium arsenite — a white or grayish-white, water-soluble, poisonous powder, NaAsO 2 , used chiefly in arsenical soaps for hides, as an insecticide, and as a weed-killer.
  • sodium chlorate — a colorless, water-soluble solid, NaClO 3 , cool and salty to the taste, used chiefly in the manufacture of explosives and matches, as a textile mordant, and as an oxidizing and bleaching agent.
  • sodium chloride — salt1 (def 1).
  • sodium citrates — the sodium salts of citric acid (monosodium citrate, disodium citrate, trisodium citrate)
  • sodium fluoride — a colorless, crystalline, water-soluble, poisonous solid, NaF, used chiefly in the fluoridation of water, as an insecticide, and as a rodenticide.
  • sodium peroxide — a yellowish-white, hygroscopic, water-soluble powder, Na 2 O 2 , used chiefly as a bleaching agent and as an oxidizing agent.
  • sodium stearate — Sodium stearate is a salt of stearic acid used as a surfactant (= a substance that reduces the surface tension of a liquid and allows it to foam) in order to aid the solubility of hydrophobic substances in oral medicines.
  • source document — a document that has been or will be transcribed to a word processor or to the memory bank of a computer
  • stamping ground — a habitual or favorite haunt.
  • stomping ground — a habitual or favorite haunt.
  • strontium oxide — a white insoluble solid substance used in making strontium salts and purifying sugar. Formula: SrO
  • sully-prudhomme — René François Armand [ruh-ney frahn-swa ar-mahn] /rəˈneɪ frɑ̃ˈswa arˈmɑ̃/ (Show IPA), 1839–1907, French poet: Nobel prize 1901.
  • summer flounder — a flounder, Paralichthys dentatus, inhabiting shallow waters from Cape Cod to South Carolina, valued as food.
  • summer holidays — the time when children do not go to school in the summer
  • talcum (powder) — a powder for the body and face made of powdered, purified talc, usually perfumed
  • tall meadow rue — a meadow rue, Thalictrum polygamum.
  • the outward man — the body as opposed to the soul
  • thermodiffusion — thermal diffusion.
  • thorium dioxide — a white, heavy, water-insoluble powder, ThO 2 , used chiefly in incandescent mantles, as the Welsbach gas mantle.
  • tobacco budworm — the larva of a noctuid moth, Heliothis virescens, that damages the buds and young leaves of tobacco.
  • torsion modulus — a coefficient of elasticity of a substance, expressing the ratio between the force per unit area (shearing stress) that laterally deforms the substance and the shear (shearing strain) that is produced by this force.
  • truman doctrine — the policy of President Truman, as advocated in his address to Congress on March 12, 1947, to provide military and economic aid to Greece and Turkey and, by extension, to any country threatened by Communism or any totalitarian ideology.
  • turnaround time — the total time taken between the submission of a program for execution and the return of the complete output to the customer
  • ultra-modernist — very advanced in ideas, design, or techniques.
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