A clove of garlic is one of the individual segments that make up a whole head (bulb) of garlic.
To understand better:
- A fresh garlic bulb is covered in a papery, white skin.
- When you remove this outer skin, you will find that the bulb consists of several smaller, individual pieces.
- Each of these individual pieces is a clove of garlic, and they are also covered in a thin, papery skin.
Think of the garlic bulb as a container holding several individual "cloves" inside. These cloves are what you peel and use in cooking.