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13-letter words starting with ro

  • roman holiday — a public spectacle or controversy marked by barbarism, vindictiveness, or scandal.
  • roman letters — a typeface used in ancient Roman inscriptions
  • roman numeral — one of the numerals in the ancient Roman system of notation, still used for certain limited purposes, as in some pagination, dates on buildings, etc. The common basic symbols are I, (=1), V, (=5), X, (=10), L, (=50), C, (=100), D, (=500), and M, (=1000). The Roman numerals for one to nine are: I, II, III, IV, V, VI, VII, VIII, IX. A bar over a letter multiplies it by 1000; thus, X̅ equals 10,000. Integers are written according to these two rules: If a letter is immediately followed by one of equal or lesser value, the two values are added; thus, XX equals 20, XV equals 15, VI equals 6. If a letter is immediately followed by one of greater value, the first is subtracted from the second; thus, IV equals 4, XL equals 40, CM equals 900. Examples: XLVII(=47), CXVI(=116), MCXX(=1120), MCMXIV(=1914). Roman numerals may be written in lowercase letters, though they appear more commonly in capitals.
  • romantic lead — a person who plays the main character in a romantic film or play
  • romantic love — love characterized by romance and involving sexual attraction
  • romanticality — the state or quality of being romantic
  • romanticising — to make romantic; invest with a romantic character: Many people romanticize the role of an editor.
  • rond de jambe — a circular movement of the leg.
  • rooming house — a house with furnished rooms to rent; lodging house.
  • roosevelt dam — a dam on the Salt River, in central Arizona. 284 feet (87 meters) high; 1080 feet (329 meters) long.
  • root division — the act or process of reproducing plants by a division of roots or crowns.
  • root of unity — a complex number that when raised to some positive integral power results in 1.
  • root position — the position of a triad in which the root is in the bass.
  • root pressure — osmotic pressure within the cells of a root system that causes sap to rise through a plant stem to the leaves.
  • rory o'connor — Also called Roderic. ?1116–98, king of Connaught and last High King of Ireland
  • rose d'anvers — a gem having a rose cut of 12 or fewer facets.
  • rose geranium — a geranium, Pelargonium graveolens, cultivated for its fragrant, lobed or narrowly divided leaves.
  • rose mandarin — (in the Chinese Empire) a member of any of the nine ranks of public officials, each distinguished by a particular kind of button worn on the cap.
  • rose of china — China rose (def 2).
  • rose-coloured — of the colour rose; rosy
  • rosebud mouth — a mouth that resembles the unopened flower of a rose in shape
  • rosehip syrup — a syrup made from rosehips, used as a cough remedy
  • rosenkavalier — an opera (1911) by Richard Strauss.
  • rosetta stone — a stone slab, found in 1799 near Rosetta, bearing parallel inscriptions in Greek, Egyptian hieroglyphic, and demotic characters, making possible the decipherment of ancient Egyptian hieroglyphics.
  • rosh hashanah — a Jewish high holy day that marks the beginning of the Jewish New Year, celebrated on the first and second days of Tishri by Orthodox and Conservative Jews and only on the first day by Reform Jews.
  • rotary beater — a culinary utensil or device, as an eggbeater, with one or more sets of rotary blades for beating, whipping, mixing, etc.
  • rotary engine — an engine, as a turbine, in which the impelling fluid produces torque directly rather than by acting upon reciprocating parts.
  • rotary harrow — a harrow with a number of turning wheels rimmed with spikes, used for various soil treatments.
  • rotary plough — an implement with a series of blades mounted on a power-driven shaft, used to break up soil or weeds
  • rotary tiller — rototiller.
  • rotation axis — an imaginary line through a crystal about which the crystal may be rotated a specified number of degrees and be brought back to its original position.
  • rotation-axes — a process of replacing the axes in a Cartesian coordinate system with a new set of axes making a specified angle with and having the same origin as the original axes.
  • rote learning — memorization by repetition
  • rouge et noir — a gambling game using cards, played at a table marked with two red and two black diamond-shaped spots on which the players place their stakes.
  • rough as bags — uncouth
  • rough diamond — gemstone: uncut diamond
  • rough justice — If you describe someone's treatment or punishment as rough justice, you mean that it is not given according to the law.
  • rough passage — a stormy sea journey
  • rough sleeper — a homeless person who sleeps rough
  • roughing mill — a rolling mill for converting steel ingots into blooms, billets, or slabs.
  • round herring — any of several herringlike fishes of the family Dussumieriidae having a rounded abdomen, living chiefly in tropical marine waters.
  • round kumquat — an evergreen, citrus shrub or small tree, Fortunella japonica, of Japan, having blunt, broad leaves and globe-shaped, edible fruit.
  • round of beef — round1 (def 35a).
  • round-cheeked — having plump cheeks
  • round-tripper — a home run.
  • roundtripping — a form of trading in which a company borrows a sum of money from one source and takes advantage of a short-term rise in interest rates to make a profit by lending it to another
  • rouse oneself — to become active or energetic
  • rousseauistic — the doctrines or principles of Jean Jacques Rousseau or his adherents.
  • route planner — a book of road maps
  • routinization — to develop into a regular procedure.
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