crustacea

Thân thiện

A lobster is a type of crustacea found in the ocean.

Definition

1. Noun:
   • A class of mandibulate arthropods: "Crustacea" is the scientific name for a large class of arthropods characterized by having a hard exoskeleton (a crust), two pairs of antennae, and mandibles for chewing. This class includes aquatic and some terrestrial species.

Usage Examples

• Noun:
  • Marine biologists study various members of the Crustacea, such as crabs and shrimp.
  • The diversity within Crustacea is immense, ranging from microscopic water fleas to large lobsters.

Advanced Usage

• "The class Crustacea": Used in formal biological and zoological contexts to refer to the taxonomic group.
  • Barnacles, though sessile as adults, belong to the class Crustacea.

Variants and Related Words

• Crustacean (n): An individual animal belonging to the class Crustacea.
  • A crab is a type of crustacean.
• Crustaceous (adj): Having a hard shell or crust; resembling a crustacean.

Synonyms

• Shellfish (Note: This is a culinary and informal term, not a strict scientific synonym, as it often includes mollusks like oysters and clams, which are not crustaceans.)
• Arthropods (This is the broader phylum to which Crustacea belong.)

Related Phrases

• Crustacean larvae: The early, often planktonic, life stages of crustaceans.
  • The zoea is a common type of crustacean larva.

Học thuật

Noun

1. class of mandibulate arthropods including: lobsters; crabs; shrimps; woodlice; barnacles; decapods; water fleas

Từ đồng nghĩa

• Crustacea
• class Crustacea