family Trionychidae

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Definition

Noun: - A family of reptiles: Family Trionychidae is the taxonomic family comprising soft-shelled turtles. These are aquatic turtles characterized by a leathery, flexible carapace (upper shell) lacking horny scutes, a long neck, and a snorkel-like snout.

Usage
  • Scientific/biological context: The term is used primarily in zoological and biological classification to refer to this specific family of turtles.
    • The peculiar morphology of the family Trionychidae is adapted for a fully aquatic, bottom-dwelling lifestyle.
    • Researchers are studying the evolutionary history of family Trionychidae.
Advanced Usage
  • In taxonomic hierarchy: The term is used to denote a precise rank (family) within the order Testudines (turtles).
    • The classification places the genus Apalone within the family Trionychidae.
Variants and Related Words
  • Trionychidae: The more common form of the term, often used without the word "family" as it is the formal family name.
    • The fossil record for Trionychidae extends back to the Cretaceous period.
  • Soft-shelled turtle(s): The common name for any member of this family.
    • The soft-shelled turtle buried itself in the riverbed sand.
  • Trionychid: (Adjective) Relating to or characteristic of the family Trionychidae.
    • The specimen showed distinct trionychid features.
Synonyms
  • Soft-shell turtle family: A descriptive synonym.
  • Leathery turtle family: Another descriptive term referencing the shell texture.
Different Meanings

This term has a single, specific meaning in biological taxonomy. It does not have general or figurative meanings.

Noun
  1. soft-shelled turtles

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