What is a small greyhound?

There's no breed of dog called a "small greyhound". However, there are a few possibilities for what you might be thinking of:

* Italian Greyhound: This breed is a miniature version of the Greyhound, with a similar sleek build and elegant appearance. They are known for their speed and affectionate personalities.

* Whippet: While not technically a miniature Greyhound, the Whippet is a smaller breed with a similar sighthound build and athleticism. They are known for being gentle and playful.

* "Small" Greyhound: It's possible someone is using "small greyhound" to describe a Greyhound that is smaller than average for the breed. Greyhounds can have a lot of variation in size, so there are some that are relatively smaller than others.

If you're looking for a specific breed of dog, it's best to use the actual breed name to avoid confusion.