nickel

• 一种坚硬、银白色的金属元素，用于制造合金和硬币；也指美国面值五分的硬币，或俚语中指价值五美元的毒品剂量。

A noun referring to a hard, silvery metallic element used in alloys, or a US coin worth five cents, or a slang term for five dollars worth of a drug.

1. Metallic elementB2formalscientific

   A hard, silvery-white metal that is resistant to rust and corrosion, often used in alloys and coins.

   镍

   • Nickel is commonly used in the production of stainless steel.
   • The coin is made from a nickel and copper alloy.
   • Nickel mining is a major industry in some countries.

2. US coinA2formalamerican

   A coin of the United States worth five cents, or one twentieth of a dollar.

   五分镍币

   • He paid for the candy with a nickel.
   • The vending machine only accepts quarters and nickels.
   • She found a nickel on the sidewalk.

3. Slang for five dollarsC1slangamerican

   A slang term meaning five dollars, often used in the context of buying or selling drugs.

   五美元

   • He bought a nickel bag from the dealer.
   • The street price for that is a nickel.
   • He only had a nickel to spend on the stuff.

   同义词finfivefive-spotfiver

• 用镍覆盖或镀在物体表面，或用镍化合物进行处理。

A verb meaning to coat or plate with nickel, or to treat with a nickel compound.

1. Plate with nickelC1formal

   To coat or cover a metal object with a thin layer of nickel, typically for protection or decoration.

   镀镍

   • The factory nickels steel parts to prevent rust.
   • He learned how to nickel the antique hardware.
   • They nickeled the brass fittings to give them a shiny finish.