snapping shrimp
Definition
Noun 1. A small marine crustacean: A type of small shrimp, belonging to the family Alpheidae, characterized by having one greatly enlarged claw (cheliped). 2. Producer of a distinctive sound: This shrimp is known for creating a loud snapping or popping noise by rapidly closing its specialized large claw. This action creates a cavitation bubble that implodes with intense force, used for communication, hunting, and defense.
Usage Examples
- The constant crackling sound on the coral reef is often caused by the snapping shrimp.
- Researchers study the snapping shrimp to understand the physics of its powerful claw snap.
- A snapping shrimp can stun or kill small prey with the shockwave from its snap.
Advanced Usage
- Ecological Role: Snapping shrimp are often cited as a key contributor to the pervasive background noise in warm, shallow coastal waters, sometimes called "shrimp crackle." This biological noise can even interfere with sonar and underwater acoustic detection.
- Symbiotic Relationships: Many species live in mutualistic relationships, such as with goby fish. The shrimp maintains and shares a burrow, while the goby acts as a lookout.
Variants and Related Words
- Pistol shrimp: A common synonym for snapping shrimp.
- Alpheid shrimp: The scientific family name (Alpheidae) used as a general descriptive term.
Synonyms
- Pistol shrimp
Related Phrases / Idioms
- To snap like a shrimp: (A rare, descriptive phrase) To make a sudden, sharp, cracking sound.
Noun
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small shrimp that makes a snapping noise with one of their enlarged chelae
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