The difference between Copper and Speculum metal

When used as nouns, copper means a reddish-brown, malleable, ductile metallic element with high electrical and thermal conductivity, symbol cu, and atomic number 29, whereas speculum metal means a mixture of around two-thirds copper and one-third tin making a white brittle alloy that can be polished into a highly reflective surface.

Copper is also verb with the meaning: to sheathe or coat with copper.

Copper is also adjective with the meaning: made of copper.

check bellow for the other definitions of Copper and Speculum metal

  1. Copper as a noun (uncountable):

    A reddish-brown, malleable, ductile metallic element with high electrical and thermal conductivity, symbol Cu, and atomic number 29.

  2. Copper as a noun (countable):

    Something made of copper.

  3. Copper as a noun:

    The reddish-brown colour/color of copper.

    Examples:

    "color paneBB5836"

  4. Copper as a noun (countable):

    A copper coin.

  5. Copper as a noun (UK, AU, dated):

    A large pot, often used for heating water or washing clothes over a fire. In Australasia at least, it could also be a fixed installation made of copper, with a fire underneath and its own chimney. Generally made redundant by the advent of the washing machine.

    Examples:

    "Mum would heat the water in a copper in the kitchen and transfer it to the tin bath."

    "I explain that socks can’t be boiled up in the copper with the sheets and towels or they shrink."

  1. Copper as an adjective:

    Made of copper.

  2. Copper as an adjective:

    Having the reddish-brown colour/color of copper.

  1. Copper as a verb:

    To sheathe or coat with copper.

  1. Copper as a noun (slang, law enforcement):

    A police officer.

  1. Speculum metal as a noun:

    A mixture of around two-thirds copper and one-third tin making a white brittle alloy that can be polished into a highly reflective surface.

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