decapoda
Definition
- Noun:
- A taxonomic order of crustaceans: "Decapoda" refers to an order of crustaceans characterized by having ten legs. This group includes familiar marine animals such as lobsters, crayfish, crabs, shrimps, and prawns.
- A former taxonomic order of cephalopods: Historically, "Decapoda" also referred to an order of cephalopods (squids and cuttlefishes) possessing ten arms. In modern taxonomy, this group is typically referred to by other names (e.g., Teuthida for squids).
Usage Examples
Noun (Crustaceans):
- The restaurant specializes in dishes made from various Decapoda, like lobster and crab.
- Shrimps and prawns, both members of the Decapoda, are vital to the aquaculture industry.
Noun (Historical/Cephalopods):
- In older classification systems, the giant squid was placed within the Decapoda.
Advanced Usage
- Scientific Context: The term is primarily used in zoological, biological, and culinary contexts when discussing classification or groups of shellfish.
- The study focused on the evolutionary biology of the Decapoda.
Variants and Related Words
- Decapod (n/adj): A member of the order Decapoda; having ten feet or legs.
- The decapod crustacean scurried across the ocean floor.
Synonyms
- Ten-footed crustaceans: A descriptive synonym emphasizing the defining physical characteristic.
- Malacostracans: Refers to the larger class (Malacostraca) to which decapod crustaceans belong.
Notes on Meaning
- The primary contemporary meaning refers to the crustacean order. The cephalopod meaning is largely historical or found in older scientific literature. The shared root "deca-" (ten) refers to the number of limbs in both groups.
Noun
-
squids and cuttlefishes
-
lobsters; crayfish; crabs; shrimps; prawns
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