| ORD | an order of amphibians including caecilians |
|---|---|
| ORD | an order in the subclass Telosporidia |
| ORD | an order in the subclass Acnidosporidia |
| ORD | mostly freshwater protozoa |
| ORD | order of fungi having asci in a disk- to goblet-shaped apothecium |
| ORD | plant bugs |
| ORD | flatfishes: halibut |
| ORD | yellow-green algae with simple or branching filaments |
| ORD | an order of fungi belonging to the class Gasteromycetes |
| ORD | an order of insects including: bees |
| ORD | a large order of dicotyledonous plants of subclass Dilleniidae |
| ORD | cellulose-producing flagellates |