od

[ od, ohd ]
/ ɒd, oʊd /

noun

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

Definition for od (2 of 10)

od


on demand.
outside diameter.
outside dimensions.

Definition for od (3 of 10)

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

Definition for od (4 of 10)

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

Definition for od (5 of 10)

OD


Old Dutch.
Ordnance Department.
outside diameter.

Definition for od (6 of 10)

OD.


Old Dutch.

Definition for od (7 of 10)

o.d.

1

(in prescriptions) the right eye.

Origin of o.d.

1
From the Latin word oculus dexter

Definition for od (8 of 10)

o.d.

2

olive drab.
on demand.
outside diameter.

Definition for od (9 of 10)

O.D.

1

(in prescriptions) the right eye.

Origin of O.D.

1
From the Latin word oculus dexter

Definition for od (10 of 10)

O.D.

2

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for od

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

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)

OD

1
/ (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)

OD

2

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

Medicine 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.