Definition

Noun: 1. A medium-sized shark of the family Sphyrnidae, characterized by its distinctive, flattened head that is extended laterally into a hammer- or shovel-shaped structure (called a cephalofoil) with an eye located at each end. They are viviparous (live-bearing) and are found in warm waters worldwide. Some larger species can be potentially dangerous to humans.

Usage

The term "hammerhead shark" is used to refer to any member of this specific family of sharks. It functions as a countable noun. * Scientists are studying the unique sensory abilities of the hammerhead shark. * We saw a school of hammerhead sharks during the dive. * The great hammerhead shark is the largest species in this family.

Advanced Usage

• The unique head shape, or cephalofoil, of the hammerhead shark is believed to enhance its stereoscopic vision and electroreceptive capabilities.
• The phrase "hammerhead" alone is often used informally to refer to these sharks, especially in fishing or diving contexts.
  • He's an expert at catching hammerhead.

Variants and Related Words

• Hammerhead (noun): A common shortened form for "hammerhead shark."
• Sphyrnid (noun / adjective): The scientific family name (Sphyrnidae) for hammerhead sharks; used as a technical term.
  • The sphyrnid morphology is highly specialized.

Synonyms

• Sphyrnid (technical synonym)
• Hammerhead (informal synonym)

Different Meanings

• Hammerhead (noun): Can also refer to:
  • The head of a hammer (the tool).
  • (Informal) A stubborn or foolish person.

Noun

1. medium-sized live-bearing shark with eyes at either end of a flattened hammer-shaped head; worldwide in warm waters; can be dangerous