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  • English Word Rubble Definition A mass or stratum of fragments or rock lying under the alluvium, and derived from the neighboring rock.
  • English Word Rubble Definition The whole of the bran of wheat before it is sorted into pollard, bran, etc.
  • English Word Rubblestone Definition See Rubble, 1 and 2.
  • English Word Rubblework Definition Masonry constructed of unsquared stones that are irregular in size and shape.
  • English Word Rubbly Definition Relating to, or containing, rubble.
  • English Word Rubedinous Definition Reddish.
  • English Word Rubefacient Definition Making red.
  • English Word Rubefacient Definition An external application which produces redness of the skin.
  • English Word Rubefaction Definition The act or process of making red.
  • English Word Rubelet Definition A little ruby.
  • English Word Rubella Definition An acute specific disease with a dusky red cutaneous eruption resembling that of measles, but unattended by catarrhal symptoms; -- called also German measles.
  • English Word Rubelle Definition A red color used in enameling.
  • English Word Rubellite Definition A variety of tourmaline varying in color from a pale rose to a deep ruby, and containing lithium.
  • English Word Rubeola Definition the measles.
  • English Word Rubeola Definition Rubella.
  • English Word Ruberythrinic Definition Pertaining to, or designating, an acid extracted from madder root. It is a yellow crystalline substance from which alizarin is obtained.
  • English Word Rubescence Definition The quality or state of being rubescent; a reddening; a flush.
  • English Word Rubescent Definition Growing or becoming red; tending to redness.
  • English Word Rubiaceous Definition Of or pertaining to a very large natural order of plants (Rubiaceae) named after the madder (Rubia tinctoria), and including about three hundred and seventy genera and over four thousand species. Among them are the coffee tree, the trees yielding peruvian bark and quinine, the madder, the quaker ladies, and the trees bearing the edible fruits called genipap and Sierre Leone peach, besides many plants noted for the beauty or the fragrance of their blossoms.
  • English Word Rubiacin Definition A substance found in madder root, and probably identical with ruberythrinic acid.
  • English Word Rubian Definition One of several color-producing glycosides found in madder root.
  • English Word Rubianic Definition pertaining to, or derived from, rubian; specifically, designating an acid called also ruberythrinic acid.
  • English Word Rubican Definition Colored a prevailing red, bay, or black, with flecks of white or gray especially on the flanks; -- said of horses.
  • English Word Rubicelle Definition A variety of ruby of a yellowish red color, from Brazil.
  • English Word Rubicon Definition A small river which separated Italy from Cisalpine Gaul, the province alloted to Julius Caesar.
  • English Word Rubicund Definition Inclining to redness; ruddy; red.
  • English Word Rubicundity Definition The quality or state of being rubicund; ruddiness.
  • English Word Rubidic Definition Of or pertaining to rubidium; containing rubidium.
  • English Word Rubidine Definition A nitrogenous base homologous with pyridine, obtained from coal tar as an oily liquid, C11H17N; also, any one of the group od metameric compounds of which rubidine is the type.
  • English Word Rubidium Definition A rare metallic element. It occurs quite widely, but in small quantities, and always combined. It is isolated as a soft yellowish white metal, analogous to potassium in most of its properties. Symbol Rb. Atomic weight, 85.2.