---

Playdown

---

Read Also:

• Platinum

  [plat-n-uh m, plat-nuh m] /ˈplæt n əm, ˈplæt nəm/ noun 1. Chemistry. a heavy, grayish-white, highly malleable and ductile metallic element, resistant to most chemicals, practically unoxidizable except in the presence of bases, and fusible only at extremely high temperatures: used for making chemical and scientific apparatus, as a catalyst in the oxidation of ammonia […]

• Platinous

  [plat-n-uh s] /ˈplæt n əs/ adjective, Chemistry. 1. containing bivalent . /ˈplætɪnəs/ adjective 1. of or containing platinum, esp in the divalent state

• Platinoid

  [plat-n-oid] /ˈplæt nˌɔɪd/ adjective 1. resembling : the platinoid elements. noun 2. any of the metals, as palladium or iridium, with which is commonly associated. 3. an alloy of copper, zinc, and nickel, to which small quantities of such elements as tungsten or aluminum have been added. /ˈplætɪˌnɔɪd/ adjective 1. containing or resembling platinum: a […]

• Platinotype

  [plat-n-oh-tahyp] /ˈplæt n oʊˌtaɪp/ noun, Photography. 1. a process of printing positives in which a salt is used, rather than the usual silver salts, in order to make a more permanent print. 2. Also called platinum print. a print made by this process. /ˈplætɪnəʊˌtaɪp/ noun 1. an obsolete process for producing photographic prints using paper […]

• Platinocyanide

  [plat-n-oh-sahy-uh-nahyd, -nid] /ˌplæt n oʊˈsaɪ əˌnaɪd, -nɪd/ noun, Chemistry. 1. a salt of platinocyanic acid. /ˌplætɪnəʊˈsaɪəˌnaɪd; -nɪd/ noun 1. any salt containing the divalent complex cation [Pt(CN)4]2–

---