ostium
noun 3
Definitions
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.
Your note
not saved0 chars
noun
A small opening or orifice, as in a body organ or passage.
Any of the small openings or pores in a sponge.
The mouth of a river.