Search Result：biosafety level 4
biosafety level 4 
(TTS Sound)
(TTS Sound)Overview of noun biosafety_level_4
The noun biosafety level 4 has 1 sense
- biosafety level 4 -- (exposure to exotic infectious agents that pose a high risk of life-threatening disease and can be transmitted as an aerosol and for which there is no vaccine or therapy)