| os | tiny marine and freshwater crustaceans with a shrimp-like body enclosed in a bivalve shell |
|---|---|
| os | seed shrimps |
| os | extinct fishlike jawless vertebrate having a heavily armored body |
| os | extinct group of armored jawless vertebrates |
| os | type genus of the family Ostreidae |
| os | large native of Japan introduced along United States Pacific coast |
| os | oysters |
| os | fast-running African flightless bird with two-toed feet |
| os | tall fern of northern temperate regions having graceful arched fronds and sporophylls resembling ostrich plumes |
| os | a member of the eastern group of Goths who created a kingdom in northern Italy around 500 AD |
| os | deciduous monoecious trees of Europe and Asia and America |
| os | medium-sized hop hornbeam of southern Europe and Asia Minor |