[pol-ee-uh-tom-ik] /ˌpɒl i əˈtɒm ɪk/

adjective, Chemistry.
pertaining to a molecule containing more than two atoms.
(of a molecule) containing more than two atoms


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  • Polyatomic ion

    noun a charged particle which has two or more atoms held together by covalent bonds

  • Polyatomic molecule

    noun an uncharge particle which has more than two atoms; a molecule consisting of atoms from a single element

  • Polyaxial joint

    polyaxial joint pol·y·ax·i·al joint (pŏl’ē-āk’sē-əl) n. See multiaxial joint.

  • Poly bag

    /ˈpɒlɪ/ noun 1. (Brit, informal) a polythene bag, esp one used to store or protect food or household articles

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