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valence, in chemistry
(Encyclopedia)valence, combining capacity of an atom expressed as the number of single bonds the atom can form or the number of electrons an element gives up or accepts when reacting to form a compound. Atoms are c...Weissenburg in Bayern
(Encyclopedia)Weissenburg in Bayern vīˈsənbo͝ork ĭn bīˈyərn [key] or Weissenburg, town, Bavaria, S Germany. It is a manufacturing center of Middle Franconia; products include gold and silver lace, processed...wave, in physics
(Encyclopedia)wave, in physics, the transfer of energy by the regular vibration, or oscillatory motion, either of some material medium or by the variation in magnitude of the field vectors of an electromagnetic fie...rust, in botany
(Encyclopedia)rust, in botany, name for various parasitic fungi of the order Uredinales and for the diseases of plants that they cause. Rusts form reddish patches of spores on the host plant. About 7,000 species ar...rye, in botany
(Encyclopedia)rye, cereal grain of the family Poaceae (grass family). The grain, Secale cereale, is important chiefly in Central and N Europe. It seems to have been domesticated later than wheat and other staple gr...tupelo , in botany
(Encyclopedia)tupelo: see black gum.bast, in botany
(Encyclopedia)bast: see bark.transcendentalism , in philosophy
(Encyclopedia)transcendentalism, in philosophy, term descriptive of systems that hold that there are modes of being and principles of existence beyond the reach of mundane experience and manipulation. The term is n...triangle , in mathematics
(Encyclopedia)triangle, in mathematics, plane figure bounded by three straight lines, the sides, which intersect at three points called the vertices. Any one of the sides may be considered the base of the triangle....triangle , in music
(Encyclopedia)triangle, in music, percussion instrument consisting of a steel rod bent into a triangle, open at one angle, and struck with a steel rod. Only since the end of the 18th cent. has it been an orchestral...Browse by Subject
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