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- A plant or animal certified through specific tests as being free of specified pathogens . Should be interpreted to mean "free from any known disease" as "new" diseases may yet be discovered to be present.
UN Food and Agriculture Organization - Cite This Source - This Definition
- degeneration, disease-indexing, endemic, epizootic, functional food, germ, gluten, haemophilia, hypoplastic, inactivated agent, leaf roll, phytosterol, replacement therapy, stomatal index, Virulence, zoonosis