Hammerhead (noun)

1. A tool consisting of a handle with a heavy head at one end, used for striking nails, driving stakes, etc.
2. A shark of the family Sphyrnidae, characterized by a flat, wide head that is extended laterally on either side of the body.

Origin:

Compound word hammer + head, refers to the shape of the head of the hammer which resembles the shape of a hammerhead shark.

Examples:

1. He used a hammer to drive nails into the wall.
2. The hammerhead shark is a unique species of shark that is found in warm tropical waters.
3. A hammerhead is a tool consisting of a handle with a heavy head at one end, used for striking nails, driving stakes, etc.
4. Hammerheads are available in a variety of sizes and designs, including claw hammers, framing hammers, and sledgehammers.
5. The hammerhead shark is so named because of its distinctive hammer-shaped head, which it uses to locate and crush its prey.