od

1 of 4

interjection

ˈäd 

variants or odd

often capitalized

archaic

—used as a mild oath

OD

2 of 4

noun

ˌō-ˈdē 

1

: an overdose of a narcotic

2

: one who has taken an OD

OD

3 of 4

verb

OD'd or ODed; OD'ing; OD's

intransitive verb

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

4 of 4

abbreviation

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

Word History

Etymology

Interjection

euphemism for God

Noun

overdose

First Known Use

Interjection

1600, in the meaning defined above

Noun

1859, in the meaning defined at sense 1

Verb

1965, in the meaning defined at sense 1

Kids Definition

OD

1 of 2 noun

(ˈ)ō-ˈdē 

: an overdose of a drug and especially a narcotic

OD

2 of 2 verb

OD'd or ODed

(ˈ)ō-ˈdēd

; OD'ing

(ˈ)ō-ˈdē-iŋ

: to become ill or die from an OD

Medical Definition

od

1 of 4 abbreviation

every day

—used in writing prescriptions

OD

2 of 4 noun

(ˈ)ō-ˈdē 

1

: an overdose of a narcotic

2

: an individual who has taken an OD

OD

3 of 4 intransitive verb

OD'd or ODed; OD'ing; OD's

: to become ill or die of an OD

OD

4 of 4 abbreviation

1

doctor of optometry

2

[Latin oculus dexter] right eye

—used in writing prescriptions

Etymology

Abbreviation

Latin omnes dies