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Ob, Ob River | a major river of western Siberia; flows generally northward and westward to the Gulf of Ob and the Kara Sea | |
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Open beta, OB, OBT | [in computer_science] the testing activity of a computer program done by public testers | |
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midwifery, obstetrics, OB, tocology | the branch of medicine dealing with childbirth and care of the mother | |
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OB, public beta, OBT, open beta | [in computer_science] NO DEFINITION |