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od

[od, ohd]
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noun
  1. a hypothetical force formerly held to pervade all nature and to manifest itself in magnetism, mesmerism, chemical action, etc.
Also odyl, odyle.

Origin of od

First recorded in 1840–50; arbitrary name coined by Karl von Reichenbach (1788–1869), German scientist

od

  1. on demand.
  2. outside diameter.
  3. outside dimensions.
  4. overdraft.
  5. overdrawn.

Od

or 'Od, Odd

[od]
interjection Archaic.
  1. a shortened form of “God” (used in euphemistically altered oaths).

Origin of Od

First recorded in 1590–1600

OD

[oh-dee]
noun, plural ODs or OD's.
  1. an overdose of a drug, especially a fatal one.
  2. a person who has taken an overdose of a drug, especially one who has become seriously ill or has died from such an overdose.
verb (used without object), OD'd or ODed or OD'ed, OD'ing or OD·ing.
  1. to take an overdose of a drug.
  2. to die from an an overdose of a drug.
  3. to have or experience an excessive amount or degree of something.

Origin of OD

First recorded in 1955–60

OD

  1. officer of the day.
  2. Old Dutch.
  3. Ordnance Department.
  4. outside diameter.

OD.

  1. Old Dutch.

o.d.1

  1. (in prescriptions) the right eye.

Origin of o.d.1

From the Latin word oculus dexter

o.d.2

  1. olive drab.
  2. on demand.
  3. outside diameter.

O.D.1

  1. (in prescriptions) the right eye.

Origin of O.D.1

From the Latin word oculus dexter

O.D.2

  1. Doctor of Optometry.
  2. officer of the day.
  3. Old Dutch.
  4. (of a military uniform) olive drab.
  5. ordinary seaman.
  6. outside diameter.
  7. overdraft.
  8. overdrawn.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for od

Historical Examples

  • To what land was he taken, that his life might be saved from King Hĕr´od?

    Hurlbut's Bible Lessons

    Rev. Jesse Lyman Hurlbut

  • Thomas brought bedding from the OD bunk and made me comfortable on the floor.

    Greylorn

    John Keith Laumer

  • I was resting on the OD bunk, and Clay was standing beside me.

    Greylorn

    John Keith Laumer

  • Examples of imitation (which is commonest in Book i.) are: Od.

  • Tibullus was on friendly terms with Horace, who addressed to him Od.


British Dictionary definitions for od

od

odyl or odyle (ˈɒdɪl)

noun
  1. archaic a hypothetical force formerly thought to be responsible for many natural phenomena, such as magnetism, light, and hypnotism
Derived Formsodic, adjective

Word Origin

C19: coined arbitrarily by Baron Karl von Reichenbach (1788–1869), German scientist

Od

'Od or Odd

noun
  1. euphemistic (used in mild oaths) an archaic word for God

OD1

noun
  1. an overdose of a drug
verb OD's, OD'ing or OD'd
  1. (intr) to take an overdose of a drug

Word Origin

C20: from o (ver) d (ose)

OD2

abbreviation for
  1. Officer of the Day
  2. Old Dutch
  3. ordnance datum
  4. outside diameter
  5. Also: o.d. military olive drab
  6. Also: O/D banking
    1. on demand
    2. overdraft
    3. overdrawn
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for od

O.D.

abbreviation of overdose, attested from 1960.

Online Etymology Dictionary, © 2010 Douglas Harper

od in Medicine

OD

abbr.
  1. Doctor of Optometry
  2. oculus dexter (right eye)
  3. overdose
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.