| Term | Definition | Contributor | Modified |
|---|---|---|---|
| Operational | A product, tool or service that has been validated and certified suitable for use in the intended operational context. | Ryan McGranaghan | 2023.04.16 |
| operational environment | No definition provided | Ryan McGranaghan | 2023.04.16 |
| operation on function | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Operations, Calculus of | No definition provided | Christopher Rauch | 2023.12.01 |
| Operations, Surgical | No definition provided | Christopher Rauch | 2023.12.01 |
| Operative surgery | No definition provided | Christopher Rauch | 2023.12.01 |
| Operetta | No definition provided | Christopher Rauch | 2023.12.01 |
| Operetta--Bibl | No definition provided | Christopher Rauch | 2023.12.01 |
| Ophidia | No definition provided | Christopher Rauch | 2023.12.01 |
| ophiolite | An Ophiolite is a section of the Earth's oceanic crust and the underlying upper mantle that has been uplifted or emplaced to be exposed within continental crustal rocks. [Wikipedia] | Ryan McGranaghan | 2023.04.16 |
| Ophiolites | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Ophiolites | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Ophiology | No definition provided | Christopher Rauch | 2023.12.01 |
| Ophiuroidea | No definition provided | Christopher Rauch | 2023.12.01 |
| Ophthalmia | No definition provided | Christopher Rauch | 2023.12.01 |
| Ophthalmia neonatorum | No definition provided | Christopher Rauch | 2023.12.01 |
| Ophthalmic and aural hospitals | No definition provided | Christopher Rauch | 2023.12.01 |
| Ophthalmological instruments and apparatus | No definition provided | Christopher Rauch | 2023.12.01 |
| Ophthalmology | No definition provided | Christopher Rauch | 2023.12.01 |
| Ophthalmology--Periodicals | No definition provided | Christopher Rauch | 2023.12.01 |