Siluridae

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Definition

Proper noun: * Siluridae: A family of catfish native to Europe and Asia, characterized by the absence of an adipose fin and often having long, slender bodies. They are commonly known as the sheatfish family.

Usage Notes
  • Capitalization: "Siluridae" is always capitalized as it is a proper noun referring to a specific biological family.
  • Context: This term is used almost exclusively in scientific, zoological, or ichthyological (the study of fish) contexts. It is not a common word in everyday English.
  • Grammar: It is treated as a singular noun when referring to the family as a single taxonomic group (e.g., ). It can be used in the plural form when referring to multiple members of the family (e.g., ), though "silurids" is more common for the plural.
Examples
  • The Siluridae family includes the well-known Wels catfish ().
  • Biologists are studying the evolutionary history of Siluridae.
  • Several species belonging to Siluridae are found in freshwater rivers across Eurasia.
Advanced Usage
  • In Taxonomic Hierarchy: The term is used to specify a rank in biological classification.
    • The order Siluriformes contains the family Siluridae.
  • As an Adjective (Silurid): The derived adjective "silurid" is used to describe characteristics of this family.
    • The researcher noted the typical silurid body shape.
Variants and Related Words
  • silurid (noun, common): A more general term for any catfish belonging to the family Siluridae.
    • The aquarium has a tank dedicated to large silurids.
  • sheatfish (noun, common): A common name for some large members of the Siluridae family, especially the genus .
Synonyms
  • Sheatfish family: The common English name for the Siluridae family.
Different Meanings

This word has only one specific meaning in modern English: it refers exclusively to the taxonomic family of Old World catfishes. It is not to be confused with "Silurian," which refers to a geological period.

Noun
  1. Old World catfishes

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