Definition

Noun: 1. A type of tropical marine fish: "Leatherjack" refers to any of several species of fish found in tropical waters, particularly in the New World (the Americas). These fish are characterized by having very small, rough scales that are embedded in their skin, giving them a tough, leathery texture.

Usage Notes

• The term "leatherjack" is primarily used in ichthyology (the study of fish) and by anglers (fishermen) in regions where these fish are found.
• It is a common name, not a scientific one, and can refer to different species within the families Balistidae (triggerfishes) and Monacanthidae (filefishes), which share this physical characteristic.
• The defining feature is the "tiny embedded scales," which feel like sandpaper or leather.

Examples

• Noun:
  • We caught a small but tough leatherjack while fishing off the Florida coast.
  • The leatherjack is easily identified by its rough, leathery skin.
  • Several species of leatherjack inhabit the coral reefs of the Caribbean.

Advanced Usage

• The name is descriptive of the fish's physical defense. The tough, leathery skin with embedded scales makes it difficult for predators to bite or swallow.

Variants and Related Words

• Leatherjacket (noun): This is a common variant spelling and form of the word "leatherjack." It refers to the same type of fish.
  • The angler showed us the leatherjacket he had caught.
• Triggerfish (noun): A specific family of fish (Balistidae) that many leatherjacks belong to, named for a locking spine on their dorsal fin.
• Filefish (noun): Another specific family (Monacanthidae) that includes leatherjacks, named for their rough, file-like skin.

Synonyms

• Triggerfish (for species in the Balistidae family)
• Filefish (for species in the Monacanthidae family)
• Leatherfish: A less common synonym highlighting the same texture.

Different Meanings

• Leatherjack has no other distinct, widely recognized meanings in modern English. It is a specific term for this group of fish. It should not be confused with "leatherjacket," which can also refer to the larval stage of certain crane flies (insects) in British English.

Noun

1. any of several New World tropical fishes having tiny embedded scales