Description of a Borzoi.

The Borzoi is a breed of dog also called the Russian Wolfhound. They have medium-length, slightly curly hair and are similar in shape to Greyhounds. They are a member of the sighthound family.

The plural Borzois may be found in dictionaries. However, the Borzoi Club of America asserts Borzoi is the preferred form for both singular and plural. At least one manual of grammatical style rules that the breed name should not be capitalized except at the beginning of a sentence; again, breed fanciers usually differ, and capitalize it wherever found.

"Borzaya" ("quick dog") is a Russian term for various types of native sighthound. The Russkaya Psovaya Borzaya (Psovoi - the longhaired borzoi) is the dog we know as Borzoi. The system by which Russians over the ages named their sightdogs was a series of describing terms, not actual names, which makes the use of Borzoi for the Psovaya a mistake made by the first Western exporters of the breed. "Psovaya" means "longhaired", just as "Hortaya" (as in Hortaya Borzaya) means shorthaired. Other Russian sightdog breeds are e.g. "Stepnaya Borzaya" (from the steppe), called "Stepnoi" or "Krimskaya Borzaya" (from the Krim), called "Krimskoi".