Definition of "greyhound" []

• Any of a breed of tall slender dog, having a smooth coat, a narrow head, and long legs and capable of running swiftly. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Cylart was sometimes referred to as being a greyhound, but only because any large dog who was not too square or bulky was often called a greyhound at that time in much the same way that many people today refer to all breeds of northern dogs with bushy hair, a pointed face, pricked ears, and a plumed tail that is carried curved over its back as a “Husky”."
• "One oversized handler has a pencil-thin Italian greyhound at the end of a leash."
• "Weighing up to 80 tons and almost twice the length of a school bus, the massive fin whale -- known as the greyhound of the sea for its swimming speed -- was the victim of decades of commercial slaughter that killed the whales by the tens of thousands each year."