od

/oʊd/
abbreviation
  1. Short for 'overdose', especially of a drug.
    • He was rushed to the hospital after an OD on painkillers.
    • The news reported a rise in OD cases among young adults.
    • She survived an OD and got help for her addiction.
noun
  1. A hypothetical force or natural power once believed to be responsible for magnetism, electricity, and other phenomena.
    • The theory of od was popular among spiritualists but later rejected.
    • She read about od in an old book on natural philosophy.
    • In the 19th century, some scientists thought od explained how magnets worked.