UNIT 4

1. distress or uneasiness caused by fear of danger or misfortune
5. taste, esp. the distinctive taste of something in the mouth
6. causing or bringing terror
7. Psychiatrya continuous, irrational fear of something that leads to an overwhelming desire to avoid it:
9. a pleasant series of thoughts imagined while awake;reverie
10. achieving or having achieved success
11. a system of knowledge about the physical world, explaining or describing what it is and how it works in general laws, gained by observing, experimenting, and testing theories
12. to fight hard against an attacker

1. free from error;carefully precise:
2. Diseasesa disease of horses marked by dry rifts or chaps that appear on the skin near the fetlock, behind the knee, or in front of the hock.
3. the natural world as it exists without human beings or civilization;
4. Biologythe scientific study of life or living matter in all its forms and processes:
8. to strike repeatedly with force, as with an instrument, the fist, etc.
13. elements of the natural world, as mountains, trees, animals, or rivers.