|
|
 |
|
|
|
|
| os·ti·um [ óstee əm ] (plural os·ti·a [ óstee ə ]) |
noun |
|
| Definition: |
| |
1. small opening: a small pore or opening in a passage or organ of the body
|
2. pore in sponge: a pore or small opening in a sponge, through which water passes
|
| [Mid-17th century. < Latin, "mouth of a river, opening"] |
|
|
|
