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ostium
[ os-tee-uhm ]
noun
- 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
Word History and Origins
Origin of ostium1
Word History and Origins
Origin of ostium1
Example Sentences
Unlike an explosive human sneeze, the sponges slowly and continuously secreted debris-laden mucus from their ostia, with one contraction taking between 20 and 50 minutes, the study finds.
This will bring the anterior wall of the sinus with its ostium into view.
Aurelius had gone out into the ostium, which was still being shaken with the blows at the door.
In acute cases of salpingitis the cœlomic ostium is open and the infective material can be seen leaking from it (Fig. 3).
The really favouring factor in the case is the condition of the cœlomic ostium of the tube.
The contents of the cavity generally make their way through the natural ostium, before any of the bony walls give way.
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