Tungsten-rating
noun
1.
a film-speed rating that indicates the relative sensitivity of a particular film stock to light from incandescent lamps with tungsten filaments.
Read Also:
- Tungsten-steel
noun 1. an alloy steel containing tungsten. tungsten steel noun 1. any of various hard steels containing tungsten (1–20 per cent) and traces of carbon. They are resistant to wear at high temperatures and are used in tools
- Tungsten-trioxide
noun, Chemistry. 1. a heavy, canary-yellow, water-insoluble powder, WO 3 , used in the manufacture of tungstates.
- Tungstic
adjective, Chemistry. 1. of or containing tungsten, especially in the pentavalent or hexavalent state. adjective 1. of or containing tungsten, esp in a high valence state
- Tungstic-acid
noun, Chemistry. 1. a hydrate of tungsten trioxide, H 2 WO 4 ⋅H 2 O, used in the manufacture of tungsten-lamp filaments. 2. any of a group of acids derived from tungsten by the addition of acid to a soluble tungstate or to a mixture of a tungstate and a silicate, phosphate, etc. tungstic acid […]
- Tungstite
noun 1. a yellow or yellowish-green mineral, tungsten trioxide, WO 3 , usually occurring in a pulverulent form. noun 1. a yellow earthy rare secondary mineral that consists of tungsten oxide and occurs with tungsten ores. Formula: WO3