SINCE 1828
\ ˈäd
\
\
variants:
or odd
Definition of od
(Entry 1 of 4)
archaic
—used as a mild oath
OD
noun
\ ˌō-ˈdē
\
\
Definition of OD (Entry 2 of 4)
1
: an overdose of a narcotic
2
: one who has taken an OD
OD
verb
OD'd
or ODed;
OD'ing;
OD's
Definition of OD (Entry 3 of 4)
1
: to become ill or die of an OD
2
: to have or experience too much of something
—usually used with on OD on television
OD
abbreviationDefinition of OD (Entry 4 of 4)
1
doctor of optometry
2
[ Latin oculus dexter ]
right eye
3
officer of the day
4
olive drab
5
on demand
6
outside diameter; outside dimension
7
overdraft; overdrawn
Keep scrolling for more
Keep scrolling for more
More Definitions for od
OD
verbEnglish Language Learners Definition of OD
informal
: to become sick or die from taking too much of a drug
: to have or experience too much of something
See the full definition for OD in the English Language Learners Dictionary
od
abbreviationMedical Definition of od
(Entry 1 of 4)
every day
—used in writing prescriptions
OD
noun
\ (ˈ)ō-ˈdē
\
\
Medical Definition of OD (Entry 2 of 4)
1
: an overdose of a narcotic
2
: an individual who has taken an OD
OD'd
or ODed;
OD'ing;
OD's
Medical Definition of OD (Entry 3 of 4)
: to become ill or die of an OD
OD
abbreviationMedical Definition of OD (Entry 4 of 4)
1
doctor of optometry
2
[ Latin oculus dexter ]
right eye
—used in writing prescriptions
Comments on od
What made you want to look up od? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Musical Words Quiz
-
- Which word describes a musical performance marked by the absence of instrumental accompaniment?
Test your vocabulary with our 10-question quiz!
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Share od
Resources for od