gnotobiote (n.), gnotobiotic (adj.)

synonym: gnotobiont
https://doi.org/10.1351/goldbook.15742
Specially reared laboratory animal whose microflora and microfauna are specifically known in their entirety.
Source:
PAC, 2007, 79, 1153. (Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)) on page 1229 [Terms] [Paper]