Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Medical Dictionary

od

abbreviation

Medical Definition of od

  1. every day—used in writing prescriptions



Origin of od

Latin omnes dies


1

OD

play
noun \(ˈ)ō-ˈdē\

Medical Definition of OD

  1. 1:  an overdose of a narcotic

  2. 2:  an individual who has taken an OD




2

OD

intransitive verb

Medical Definition of OD

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

  1. :  to become ill or die of an OD




OD

abbreviation

Medical Definition of OD

  1. 1doctor of optometry

  2. 2[Latin oculus dexter] right eye—used in writing prescriptions




Learn More about od

  1. Dictionary: Definition of "od"


Seen and Heard

What made you want to look up od? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

the Celtic May Day festival

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

angry maudlin oily prompt
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ