|a salt of hydrocyanic acid, such as potassium cyanide, KCN|
|to restore or reduce to the natural or uncombined state, such as a metal|
|1.||a malleable ductile silvery-white metallic element that is strong and corrosion-resistant, occurring principally in pentlandite and niccolite: used in alloys, esp in toughening steel, in electroplating, and as a catalyst in organic synthesis. Symbol: Ni; atomic no: 28; atomic wt: 58.6934; valency: 0, 1, 2, or 3; relative density: 8.902; melting pt: 1455°C; boiling pt: 2914°C|
|2.||a US and Canadian coin and monetary unit worth five cents|
|—vb , -els, -elling, -elled, -els, -eling, -eled|
|3.||(tr) to plate with nickel|
|[C18: shortened form of German Kupfernickel|
nickel nick·el (nĭk'əl)
A silvery hard ductile ferromagnetic metallic element used in alloys and in corrosion-resistant surfaces. Atomic number 28; atomic weight 58.69; melting point 1,455°C; boiling point 2,913°C; specific gravity 8.902; valence 0, 1, 2, 3.
|nickel (nĭk'əl) Pronunciation Key
A silvery, hard, ductile metallic element that occurs in ores along with iron or magnesium. It resists oxidation and corrosion and is used to make alloys such as stainless steel. It is also used as a coating for other metals. Atomic number 28; atomic weight 58.69; melting point 1,453°C; boiling point 2,732°C; specific gravity 8.902; valence 0, 1, 2, 3. See Periodic Table.