What level of hearing loss is considered deaf?

Related questions

1. What is the hearing range of a dolphin in Hz?
2. What is the lowest frequency a cat can hear?
3. At what age is hearing loss normal?
4. How many Hz can a cat hear?
5. Why do cats hate whistling?
6. Can females hear higher frequencies?
7. Can humans hear below 20hz?
8. Can High BP cause tinnitus?
9. What animal can hear the lowest frequency?
10. Can hearing loss affect the brain?

Tags

1. #below
2. #still
3. #follows
4. #moderate
5. #according
6. #considered
7. #threshold
8. #severe
9. #severity
10. #described
11. #normal
12. #hearing
13. #decibels