Word Meanings - PLATINUM - Book Publishers vocabulary database

A metallic element, intermediate in value between silver and gold, occurring native or alloyed with other metals, also as the platinum arsenide . It is heavy tin-white metal which is ductile and malleable, but very infusible, and characterized

Additional info about word: PLATINUM

A metallic element, intermediate in value between silver and gold, occurring native or alloyed with other metals, also as the platinum arsenide . It is heavy tin-white metal which is ductile and malleable, but very infusible, and characterized by its resistance to strong chemical reagents. It is used for crucibles, for stills for sulphuric acid, rarely for coin, and in the form of foil and wire for many purposes. Specific gravity 21.5. Atomic weight 194.3. Symbol Pt. Formerly called platina. Platinum black , a soft, dull black powder, consisting of finely divided metallic platinum obtained by reduction and precipitation from its solutions. It absorbs oxygen to a high degree, and is employed as an oxidizer. -- Platinum lamp , a kind of incandescent lamp of which the luminous medium is platinum. See under Incandescent. -- Platinum metals , the group of metallic elements which in their chemical and physical properties resemble platinum. These consist of the light platinum group, viz., rhodium, ruthenium, and palladium, whose specific gravities are about 12; and the heavy platinum group, viz., osmium, iridium, and platinum, whose specific gravities are over 21. -- Platinum sponge , metallic platinum in a gray, porous, spongy form, obtained by reducing the double chloride of platinum and ammonium. It absorbs oxygen, hydrogen, and certain other gases, to a high degree, and is employed as an agent in oxidizing.

Related words: (words related to PLATINUM)

• WHITECAP
  The European redstart; -- so called from its white forehead. The whitethroat; -- so called from its gray head. The European tree sparrow. 2. A wave whose crest breaks into white foam, as when the wind is freshening.
• WHITE-FRONTED
  Having a white front; as, the white-fronted lemur. White- fronted goose , the white brant, or snow goose. See Snow goose, under Snow.
• WHITE FLY
  Any one of numerous small injurious hemipterous insects of the genus Aleyrodes, allied to scale insects. They are usually covered with a white or gray powder.
• METALOGICAL
  Beyond the scope or province of logic.
• WHITESTER
  A bleacher of lines; a whitener; a whitster.
• WHITE-HEART
  A somewhat heart-shaped cherry with a whitish skin.
• MALLEABLE
  Capable of being extended or shaped by beating with a hammer, or by the pressure of rollers; -- applied to metals. Malleable iron, iron that is capable of extension or of being shaped under the hammer; decarbonized cast iron. See under Iron. --
• WHITESIDE
  The golden-eye.
• SILVERFIN
  A small North American fresh-water cyprinoid fish (Notropis Whipplei).
• WHITE-EAR
  The wheatear.
• ALLOYAGE
  The act or art of alloying metals; also, the combination or alloy.
• METALLIC
  Of, pertaining to, or characterized by, the essential and implied properties of a metal, as contrasted with a nonmetal or metalloid; basic; antacid; positive. Metallic iron, iron in the state of the metal, as distinquished from its ores, as magnetic
• OTHERGUISE; OTHERGUESS
  Of another kind or sort; in another way. "Otherguess arguments." Berkeley.
• MALLEABLEIZE
  To make malleable.
• SILVERIZE
  To cover with silver.
• WHITEBLOW
  See WHITLOW
• ARSENIDE
  A compound of arsenic with a metal, or positive element or radical; -- formerly called arseniuret.
• ELEMENTAL
  1. Pertaining to the elements, first principles, and primary ingredients, or to the four supposed elements of the material world; as, elemental air. "Elemental strife." Pope. 2. Pertaining to rudiments or first principles; rudimentary; elementary.
• ELEMENT
  1. One of the simplest or essential parts or principles of which anything consists, or upon which the constitution or fundamental powers of anything are based. 2. One of the ultimate, undecomposable constituents of any kind of matter. Specifically:
• METALLIFORM
  Having the form or structure of a metal.
• NOTOTHERIUM
  An extinct genus of gigantic herbivorous marsupials, found in the Pliocene formation of Australia.
• ELIMINATIVE
  Relating to, or carrying on, elimination.
• NOMINATIVELY
  In the manner of a nominative; as a nominative.
• EMANATIVE
  Issuing forth; effluent.
• DOMINATIVE
  Governing; ruling; imperious. Sir E. Sandys.
• ISOGEOTHERMAL; ISOGEOTHERMIC
  Pertaining to, having the nature of, or marking, isogeotherms; as, an isogeothermal line or surface; as isogeothermal chart. -- n.
• SMOTHER
  Etym: 1. To destroy the life of by suffocation; to deprive of the air necessary for life; to cover up closely so as to prevent breathing; to suffocate; as, to smother a child. 2. To affect as by suffocation; to stife; to deprive of air by a thick
• HEPPELWHITE
  Designating a light and elegant style developed in England under George III., chiefly by Messrs. A.Heppelwhite & Co.
• REGNATIVE
  Ruling; governing.
• ISOTHEROMBROSE
  A line connecting or marking points on the earth's surface, which have the same mean summer rainfall.
• COORDINATIVE
  Expressing coördination. J. W. Gibbs.