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A Writer's Dictionary:

OD Definition


Dictionary Home » Words Starting with O » octachord ... odonto- » OD


OD1 (slang)
noun
    ODs, OD's
    1. An overdose of drugs.
verb
    intr
    OD's, OD'd, OD'ing
    1. To take a drug overdose.
Etymology: 1960s: from overdose.




OD2
abbreviation
    1. Officer of the day.
    2. On demand.
      Form: O/D (also)
    3. Overdrawn.
      Form: O/D (also)
    4. Ordnance datum.



officer of the day
noun
    1. military.
      The officer in charge of camp or unit security on any particular day.



ordnance datum
noun
    1. The standard sea-level of the Ordnance Survey, now taken as mean sea-level at Newlyn, Cornwall.


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