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ostium

play
noun os·ti·um \ˈäs-tē-əm\

Definition of ostium

plural os·tia play \-tē-ə\

  1. :  a mouthlike opening in a bodily part (as a fallopian tube or a blood vessel)



Origin of ostium

New Latin, from Latin, door, mouth of a river; akin to Latin os mouth — more at oral


First Known Use: 1828


Medical Dictionary

ostium

play
noun os·ti·um \ˈäs-tē-əm\

Medical Definition of ostium

plural os·tia \-tē-ə\play

  1. :  a mouthlike opening in a bodily part (as a fallopian tube or a blood vessel) <stenosis of coronary ostia—R. L. Cecil & R. F. Loeb>




Learn More about ostium

  1. Medical Dictionary: Definition of "ostium" Britannica.com: Encyclopedia article about "ostium"


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