| triangle of safety | The area at the lower left sternal border where the pericardium is not covered by lung (pericardial notch); preferred site for aspiration of pericardial fluid. (05 Mar 2000) |
|---|---|
| equipment safety | Freedom of equipment from actual or potential hazards. (12 Dec 1998) |
| united states occupational safety and health administration | An office in the department of labour responsible for developing and establishing occupational safety and health standards. (12 Dec 1998) |