A container, usually made of lead, used for shielding vials or syringes containing radioactive materials. [jargon]
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Polaris Investigator Group; polymeric immunoglobulin
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(pig) 1. a domesticated form of Sus scrofa, a farm animal with cloven hoofs that is raised for its meat. 2. something felt to resemble the domesticated pig.Medical dictionary. 2011.