Definition

1. Noun:
   • A taxonomic order of comb jellies: "order Cestida" refers to a specific biological classification (order) within the phylum Ctenophora, characterized by having a flattened, ribbon-like body and short tentacles.
   • A group of marine invertebrates: It denotes a group of gelatinous, planktonic animals commonly known as comb jellies or sea gooseberries, distinguished by their unique body plan within the Ctenophora.

Usage Examples

• Noun:
  • The order Cestida includes species like the Venus's girdle. (The order Cestida includes species like the Venus's girdle.)
  • Scientists study the locomotion of organisms in the order Cestida. (Scientists study the locomotion of organisms in the order Cestida.)

Advanced Usage

• In taxonomic hierarchy: Used in scientific literature to specify a rank (order) below class and above family.
  • The phylogenetic placement of the order Cestida is well-supported by molecular data. (The phylogenetic placement of the order Cestida is well-supported by molecular data.)

Variants and Related Words

• Cestid (n): A common name for any member belonging to the order Cestida.
  • The cestid drifted gracefully through the water column. (The cestid drifted gracefully through the water column.)
• Cestum (n): The genus name for the type genus (e.g., , the Venus's girdle) within this order.
  • Cestum is the most well-known genus in the order Cestida. (Cestum is the most well-known genus in the order Cestida.)

Synonyms

• Cestida (n): The full taxonomic name; used interchangeably.
• Cestid comb jellies (n): A descriptive common name.

Related Phrases

• Member of Cestida: A phrase used to describe an organism's classification.
  • This specimen is a confirmed member of Cestida. (This specimen is a confirmed member of Cestida.)

Related Terminology

• Ctenophore (n): The broader phylum to which this order belongs.
  • All members of the order Cestida are ctenophores. (All members of the order Cestida are ctenophores.)
• Beroida (n): Another order of ctenophores, often contrasted with Cestida due to different morphological features like the absence of tentacles.
  • Unlike the order Beroida, cestids possess tentacles. (Unlike the order Beroida, cestids possess tentacles.)

Noun

1. ctenophore having short tentacles; one family