1. a statement or expression of very strong and definite criticism or disapproval. 2. to make someone or something go under the surface of water or some other liquid. 3. capable of being set on fire ignited and of burning quickly. 4. causing ruin or failure. 5. done or made quickly, 6. a substance that is in the form of a gas or that consists of very small particles mixed with the air. 7. to kill a person or animal by electric shock. 8. moving or being carried through the air. 9. the air in a particular place or 10. capable or causing infection. 11. Chemicals used in the beauty salon like nail polish, nail polish removers, callus removers, and acrylic powders for artificial nails are common products found in many nail salons. 12. is the scientific study of people at work 13. is a plate of keratin that lies on the tips of the fingers and toes. 14. are conditions of both the nail, and the surrounding skin which result from bacterial, fungal and viral infections. 15. is a planned system of working to prevent illness and injury where you work by recognizing and identifying hazards and risks. area.