Well not exactly. Die deteriation refers to the state the actual die is in when it mints the coin. The longer the die is used the less the definition is transfered to the coin. When a die is fresh and just put into use the images will be precise and crisp. Thousands of coins later the images will not only loose their crispness but the devices/images will begin to become somewhat distorted. This all happens at the mint.
What I think you were refering to in your last post would be considered wear and tear, normal circulation damage that happens well after it leaves the mint.
Hope this helps.