TELLURIUM n.
, occasionally found native as a substance of a silver-white metallic luster, but usually combined with metals, as with gold and silver in the mineral sylvanite, with mercury in Coloradoite, etc. Symbol Te. Atomic weight 125.2. Graphic tellurium. (Min.) See Sylvanite. -- Tellurium glance (Min.), nagyagite; -- called a…
UNITED a.
Combined; joined; made one. United Brethren. (Eccl.) See Moravian, n. -- United flowers (Bot.), flowers which have the stamens and pistils in the same flower. -- The United Kingdom, Great Britain and Ireland; -- so named since January 1, 1801, when the Legislative Union went into operation. -- United Greeks (Eccl.),…
URIC a.
acid, a crystalline body, present in small quantity in the urine of man and most mammals. Combined in the form of urate of ammonia, it is the chief constituent of the urine of birds and reptiles, forming the white part. Traces of it are also found in the various organs of the body. It is likewise a common constituent,…
VALENCE n.
r of atoms of hydrogen (or of other monads, as chlorine, sodium, etc.) with which it will combine, or for which it can be substituted, or with which it can be compared; thus, an atom of hydrogen is a monad, and has a valence of one; the atoms of oxygen, nitrogen, and carbon are respectively dyads, triads, and tetrads,…
VANADIUM n.
A rare element of the nitrogen-phosphorus group, found combined, in vanadates, in certain minerals, and reduced as an infusible, grayish-white metallic powder. It is intermediate between the metals and the non-metals, having both basic and acid properties. Sumbol V (or Vd, rarely). Atomic weight 51.2.…