English dictionary



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English noun: Ob

1. Ob (object) a major river of western Siberia; flows generally northward and westward to the Gulf of Ob and the Kara Sea


SynonymsOb River


Instance hypernymriver


Part meronymSiberia

2. OB (cognition) the branch of medicine dealing with childbirth and care of the mother


Synonymsmidwifery, obstetrics, tocology


Broader (hypernym)medical specialty, medicine


Narrower (hyponym)fetology, foetology, perinatology


Domain category membersgravida I, incompetent cervix, induction of labor, nullipara, para, para I, parity, presentation, primigravida, primipara, quadripara, quintipara









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