nickel
nickel
n.
coin worth 5 cents (used in USA and Canada); (Ni) hard silvery metallic pliable element used in metal alloys (Chemistry)
Nickel
Nickel is a
chemical element with symbol
Ni and
atomic number 28. It is a silvery-white lustrous
metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and
ductile. Pure nickel shows a significant chemical activity that can be observed when nickel is
powdered to maximize the exposed
surface area on which reactions can occur, but larger pieces of the metal are slow to react with air at ambient conditions due to the formation of a protective
oxide surface. Even then, nickel is reactive enough with
oxygen that
native nickel is rarely found on Earth's surface, being mostly confined to the interiors of larger
nickel–iron meteorites that were protected from oxidation during their time in space. On Earth, such native nickel is found in combination with
iron, a reflection of those elements' origin as major end products of
supernova nucleosynthesis. An iron–nickel mixture is thought to compose Earth's
inner core.
nickel
Noun
1. a hard malleable ductile silvery metallic element that is resistant to corrosion; used in alloys; occurs in pentlandite and smaltite and garnierite and millerite
(synonym) Ni, atomic number 28
(hypernym) metallic element, metal
(substance-holonym) garnierite
2. a United States coin worth one twentieth of a dollar
(hypernym) coin
3. five dollars worth of a drug; "a nickel bag of drugs"; "a nickel deck of heroin"
(synonym) nickel note
(hypernym) fiver, five-spot, five dollar bill
Verb
1. plate with nickel; "nickel the plate"
(hypernym) plate
(derivation) Ni, atomic number 28
Nickel (das)
n.
nickel, hard silvery metallic pliable element used in metal alloys (Chemistry); coin worth 5 cents
nickel
adj.
perfect, complete, undamaged, impeccable, faultless, pure
nickel
nm.
nickel, coin worth 5 cents (used in USA and Canada); hard silvery metallic pliable element used in metal alloys (Chemistry)