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Rareostium
The correct spelling is ostium.
How to pronounce ostium
noun
Say it like: Ost-ium
The correct spelling is ostium. A small opening or orifice, as in a body organ or passage.
Usage Examples
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Definition
noun
- 1.A small opening or orifice, as in a body organ or passage.
- 2.Any of the small openings or pores in a sponge.
- 3.The mouth of a river.
Similar words
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