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ostium
[ os-tee-uhm ]
noun
, plural os·ti·a [os, -tee-, uh].
- Anatomy, Zoology. a small opening or orifice, as at the end of the oviduct.
- Zoology. one of the tiny holes in the body of a sponge.
ostium
/ ˈɒstɪəm /
noun
- any of the pores in sponges through which water enters the body
- any of the openings in the heart of an arthropod through which blood enters
- any similar opening
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Word History and Origins
Origin of ostium1
First recorded in 1655–65, ostium is from the Latin word ōstium entrance, river mouth
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Word History and Origins
Origin of ostium1
C17: from Latin: door, entrance
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Example Sentences
This will bring the anterior wall of the sinus with its ostium into view.
From Project Gutenberg
Aurelius had gone out into the ostium, which was still being shaken with the blows at the door.
From Project Gutenberg
In acute cases of salpingitis the cœlomic ostium is open and the infective material can be seen leaking from it (Fig. 3).
From Project Gutenberg
The really favouring factor in the case is the condition of the cœlomic ostium of the tube.
From Project Gutenberg
The contents of the cavity generally make their way through the natural ostium, before any of the bony walls give way.
From Project Gutenberg
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