Osterid
Osterid is a term that can refer to several different things, primarily within the context of biology and zoology. In the most common usage, osterid refers to members of the family Osteriidae, which are a group of bivalve mollusks. These are marine clams that are typically found in temperate and tropical waters. They are often characterized by their irregular shells, which can be thick and heavy. Many osterid species are sessile, attaching themselves to hard substrates like rocks or other shells.
Another potential meaning of osterid relates to the genus Osteria. This genus is part of the family
It is also possible that "osterid" could be a misspelling or a less common or regional term