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od

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

Origin of od

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

Other definitions for od (2 of 9)

od

abbreviation
on demand.
outside diameter.
outside dimensions.

Other definitions for od (3 of 9)

Od

or 'Od, Odd

[ od ]
/ ɒd /

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

Origin of Od

First recorded in 1590–1600

Other definitions for od (4 of 9)

OD
[ oh-dee ]
/ ˈoʊˈdi /

noun, plural ODs or OD's.
an overdose of a drug, especially a fatal one.
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.
to take an overdose of a drug.
to die from an an overdose of a drug.
to have or experience an excessive amount or degree of something.

Origin of OD

First recorded in 1955–60

Other definitions for od (5 of 9)

OD

abbreviation
Old Dutch. Also OD., O.D.
Ordnance Department.
outside diameter.

Other definitions for od (6 of 9)

o.d.1

abbreviation
(in prescriptions) the right eye.

Origin of o.d.

1
From Latin oculus dexter

Other definitions for od (7 of 9)

o.d.2

abbreviation
olive drab.
on demand.
outside diameter.

Other definitions for od (8 of 9)

O.D.1

abbreviation
(in prescriptions) the right eye.

Origin of O.D.

1
From Latin oculus dexter

Other definitions for od (9 of 9)

O.D.2

abbreviation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use od in a sentence

British Dictionary definitions for od (1 of 4)

od

odyl or odyle (ˈɒdɪl)

/ (ɒd, əʊd) /

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

Derived forms of od

odic, adjective

Word Origin for od

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

British Dictionary definitions for od (2 of 4)

Od

'Od or Odd

/ (ɒd) /

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

British Dictionary definitions for od (3 of 4)

OD1
/ (ˌəʊˈdiː) informal /

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

Word Origin for OD

C20: from o (ver) d (ose)

British Dictionary definitions for od (4 of 4)

OD2

abbreviation for
Officer of the Day
Old Dutch
ordnance datum
outside diameter
Also: o.d. military olive drab
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

Medical definitions for od

OD

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