biosafety : Idioms & Phrases
biosafety level
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noun the level of safety from exposure to infectious agents; depends on work practices and safety equipment and facilities
WordNet
biosafety level 1
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noun exposure only to infectious agents that do not ordinarily cause human disease
WordNet
biosafety level 2
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noun exposure to infectious agents that can cause disease in humans but whose potential for transmission is limited
WordNet
biosafety level 3
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noun exposure to infectious agents that can be transmitted by the respiratory route and which can cause serious infection
WordNet
biosafety level 4
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noun 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