plural ostia
ˈä-stē-ə 
: a mouthlike opening in a bodily part (such as a fallopian tube or a blood vessel)
Examples of ostium in a Sentence
Recent Examples on the Web
Surgical treatment of a fungus ball consists in opening the infected sinus cavity at the level of its ostium and removing fungal concretions while sparing the normal mucosa.
—
Seriously Science, Discover Magazine, 9 Jan. 2017
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Seriously Science, Discover Magazine, 9 Jan. 2017
Dictionary Entries Near ostium
Cite this Entry
“Ostium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ostium. Accessed 30 Dec. 2024.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share