n a hard malleable ductile silvery metallic element that is resistant to corrosion; used in alloys; occurs in pentlandite and smaltite and garnierite and millerite
n a United States coin worth one twentieth of a dollar
n five dollars worth of a drug
v plate with nickel
n. <化>镍( nickel的名词复数 ); （美国和加拿大的）五分镍币, 五分钱