| 释义 |
noble metal
noble metaln. A metal or alloy, such as gold, that is highly resistant to oxidation and corrosion.Thesaurus| Noun | 1. | noble metal - any metal that is resistant to corrosion or oxidationmetal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.atomic number 79, Au, gold - a soft yellow malleable ductile (trivalent and univalent) metallic element; occurs mainly as nuggets in rocks and alluvial deposits; does not react with most chemicals but is attacked by chlorine and aqua regiaatomic number 78, platinum, Pt - a heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some depositsAg, atomic number 47, silver - a soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography |
Translations
noble metal
noble metal[′nō·bəl ′med·əl] (metallurgy) A metal, or alloy, such as gold, silver, or platinum having high resistance to corrosion and oxidation; used in the construction of thin-film circuits, metal-film resistors, and other metal-film devices. noble metal
metal [met´'l] any chemical element marked by luster, malleability, ductility, and conductivity of electricity and heat, and which will ionize positively in solution. adj., adj metal´lic.alkali metal one of a group of monovalent elements including lithium, sodium, potassium, rubidium, and cesium.metal fume fever an occupational disorder with malaria-like symptoms occurring in those engaged in welding and other metallic operations and due to the volatilized metals. It includes brassfounder's fever (brass chill, brazier's chill) and spelter's fever (zinc chill, zinc fume fever).heavy metal one with a high specific gravity, usually defined to be above 5.0.heavy metal poisoning poisoning with any of the heavy metals, particularly antimony, arsenic, cadmium, lead, mercury, thallium, or zinc.noble metal a metal that is highly resistant to oxidation and corrosion.no·ble met·ala metal that cannot be oxidized by heat alone, nor readily dissolved by acid, for example, gold, platinum. Synonym(s): noble elementnoble metalA metal that resists corrosion or oxidation. Examples are gold, platinum, and silver. See also: metalno·ble met·al (nōbĕl metăl) Any metallic element used in dental restorations and appliances that resists tarnish, corrosion, and oxidation during heating or in intraoral environments (e.g., gold, platinum). AcronymsSeenominalnoble metal
Words related to noble metalnoun any metal that is resistant to corrosion or oxidationRelated Words- metal
- metallic element
- atomic number 79
- Au
- gold
- atomic number 78
- platinum
- Pt
- Ag
- atomic number 47
- silver
|