decapod crustacean
Học thuậtThân thiện
Definition
- Noun:
- A type of crustacean with ten legs: A "decapod crustacean" is a member of a large order (Decapoda) of crustaceans characterized by having five pairs of thoracic legs. This group includes many familiar animals such as crabs, lobsters, shrimp, and crayfish.
Usage
- The term "decapod crustacean" is a scientific or zoological classification. It is used in academic, biological, and ecological contexts to describe and categorize these animals based on their shared anatomical feature of ten walking legs.
- In everyday language, people typically use the common names (e.g., crab, shrimp) rather than the technical term "decapod crustacean."
Examples
- Noun:
- The American lobster is a well-known decapod crustacean.
- Marine biologists study the behavior of various decapod crustaceans.
- The fossil record shows that decapod crustaceans have existed for hundreds of millions of years.
Advanced Usage
- In Taxonomic Classification: The term is used to specify members of the order Decapoda within the class Malacostraca.
- The diversity of decapod crustaceans is greatest in tropical reef environments.
Variants and Related Words
- Decapod (n): Often used as a shorter synonym for "decapod crustacean."
- The collection included several species of decapod.
- Crustacean (n): The broader biological class to which decapods belong, which also includes animals like barnacles and krill.
Synonyms
- Ten-footed crustacean: A descriptive synonym emphasizing the defining characteristic.
- Member of the order Decapoda: A more formal, taxonomic synonym.
Related Phrases
- (No common phrasal verbs or idioms are directly associated with this specific technical term.)
Related Idioms
- (This is a precise scientific term; it is not commonly used in idiomatic expressions.)
Noun
- crustaceans characteristically having five pairs of locomotor appendages each joined to a segment of the thorax