| ORD | order of imperfect fungi having no known spore stage |
|---|---|
| ORD | coextensive with the family Mycoplasmataceae |
| ORD | an order in the subclass Cnidosporidia |
| ORD | coextensive with the family Myricaceae |
| ORD | Myrtaceae |
| ORD | opossum shrimp |
| ORD | an order of higher bacteria |
| ORD | an order of higher bacteria |
| ORD | an order of higher bacteria |
| ORD | an order in the subclass Cnidosporidia |
| ORD | an order of aquatic monocotyledonous herbaceous plants |
| ORD | an order of insects including: lacewings |