Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

OB

noun [C]
 
 
/ˌəʊˈbiː/ US  /ˌoʊ-/ US

Definition

informal for obstetricianMedical studies and the people who study them
(Definition of OB noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of OB