There are multiple definitions:
pulmonary blood volume(English)
picobirnavirus(English)
- reclassified from a genus of the Birnaviridae, based on the singularity of their genomic sequences and highly singular morphological features. Picobirnavirus particles are 35–41 nm in diameter with a triangulation number of 1, 3, or 4
- RdRp
- Virology
- https://doi.org…74410-4.00350-2