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13-letter words containing a, d, r, o, i, t

  • predominating — to be the stronger or leading element or force.
  • prejudication — the act of judging beforehand
  • premedication — any drugs administered to sedate and otherwise prepare a patient for general anaesthesia
  • premeditation — an act or instance of premeditating.
  • primordiality — constituting a beginning; giving origin to something derived or developed; original; elementary: primordial forms of life.
  • prostaglandin — Biochemistry. any of a class of unsaturated fatty acids that are involved in the contraction of smooth muscle, the control of inflammation and body temperature, and many other physiological functions.
  • prosthodontia — the branch of dentistry that deals with the restoration and maintenance of oral function by the replacement of missing teeth and other oral structures by artificial devices.
  • quadrifoliate — (botany) Having four leaves or leaflets.
  • quadrillionth — a cardinal number represented in the U.S. by 1 followed by 15 zeros, and in Great Britain by 1 followed by 24 zeros.
  • quartodeciman — one of a group of early Christians who observed Easter on the day of the Jewish Passover regardless of whether or not it was Sunday
  • radial motion — the component of the motion of a star away from or toward the earth along its line of sight, expressed in miles or kilometers per second and determined by the shift in the wavelength of light emitted by the star.
  • radialization — the act of forming or arranging in a radial pattern
  • radiation fog — fog produced by the nocturnal cooling of the surface boundary layer to a temperature at which its content of water vapor condenses.
  • radiationless — not emitting or producing radiation
  • radio contact — communication or contact by means of radio waves
  • radio control — remote control by means of radio signals from a transmitter
  • radio station — station (def 8).
  • radioactinium — the radioactive isotope of thorium having a mass number 227 and a half-life of 18.8 days. Symbol: RdAc, Th 227.
  • radioactivate — to make (a substance) radioactive.
  • radioactivity — the phenomenon, exhibited by and being a property of certain elements, of spontaneously emitting radiation resulting from changes in the nuclei of atoms of the element.
  • radiolocation — the method or process of determining the position and velocity of an object by radar.
  • radiopacities — opaque to radiation; visible in x-ray photographs and under fluoroscopy (opposed to radiotransparent).
  • radiotelegram — a message transmitted by radiotelegraphy.
  • radioteletype — Also called radioteletypewriter [rey-dee-oh-tel-i-tahyp-rahy-ter, -tel-i-tahyp-rahy-] /ˌreɪ di oʊˌtɛl ɪˈtaɪpˌraɪ tər, -ˈtɛl ɪ taɪpˌraɪ-/ (Show IPA). a teletypewriter equipped for transmitting or receiving messages by radio instead of wire.
  • radius vector — Mathematics. the length of the line segment joining a fixed point or origin to a given point.
  • railroad flat — an apartment whose series of narrow rooms forms a more or less straight line.
  • raison d'etat — a purely political reason for governmental action, based on the national interest and often violating principles of justice.
  • raison d'etre — reason or justification for being or existence: Art is the artist's raison d'être.
  • randomization — to order or select in a random manner, as in a sample or experiment, especially in order to reduce bias and interference caused by irrelevant variables; make random.
  • reconsolidate — to bring together (separate parts) into a single or unified whole; unite; combine: They consolidated their three companies.
  • redesignation — an act of designating.
  • redial button — a button on a telephone, allowing the user to dial a number again
  • reduplication — the act of reduplicating; the state of being reduplicated.
  • reinvigorated — to give vigor to; fill with life and energy; energize.
  • retinoic acid — a vitamin A derivative, C20H28O2, used in the treatment of acne, skin wrinkles, etc.
  • revendication — the process or act of revendicating
  • revindication — the act of vindicating.
  • rialto bridge — a bridge over the Grand Canal in Venice, Italy, liking Rialto Island with San Marco Island
  • road accident — a traffic accident involving vehicles, pedestrians or cyclists
  • robot dancing — a dance of the 1980s characterized by jerky mechanical movements
  • rogation days — Usually, rogations. Ecclesiastical. solemn supplication, especially as chanted during procession on the three days (Rogation Days) before Ascension Day.
  • romantic lead — a person who plays the main character in a romantic film or play
  • ruggedization — the act or process of making something rugged
  • sacerdotalism — the system, spirit, or methods of the priesthood.
  • sacerdotalize — to submit (something) to sacerdotalism
  • saint leonard — a city in S Quebec, in E Canada: suburb of Montreal.
  • scarfed joint — a lapped joint between two pieces of timber made by notching or grooving the ends and strapping, bolting, or gluing the two pieces together
  • scratch video — the technique or practice of recycling images from films or television to make collages
  • short-waisted — of less than average length between the shoulders and waistline; having a high waistline.
  • silver iodate — a white, crystalline, slightly water-soluble powder, AgIO 3 , used in medicine chiefly as an antiseptic and as an astringent.
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