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chemicals

n.
US //ˈkɛmɪkəɫz// UK //kˈɛmɪkəlz// chem·i·cals
  1. 1 substances (n.)
    B1 Intermediate Science

    substances that are made by or used in chemistry.

    distinct substances produced by or used in a chemical process. Usually plural when referring to a variety of substances.

    Example

    You should wear gloves when handling strong chemicals like bleach.

    Example

    The laboratory was equipped to handle volatile chemicals that required precise temperature control to remain stable during the experiment.
  2. 2 the industry (n.)
    C1 Advanced Technical

    the business of making and selling chemical products.

    the commercial sector involved in the large-scale manufacture of chemical products.

    Example

    He spent his whole career working in chemicals.

    Example

    The regional economy relies heavily on chemicals, with several major processing plants located along the river.

    Usage

    Often used as a shorthand for the industrial sector rather than the substances themselves.
    • chemical industry

Last updated June 19, 2026