brachyurous

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brachyurous

A brachyurous crab scuttles sideways across the sandy beach.

Definition

Adjective: Of or belonging to the suborder Brachyura. This term is used in zoology to describe animals that are part of this specific taxonomic group of crustaceans, characterized by having a short, broad abdomen that is typically folded under the thorax.

Usage

The word "brachyurous" is a highly specialized scientific term. It is used almost exclusively in academic, zoological, or marine biology contexts to classify and describe certain crustaceans. * The brachyurous crabs are distinguished from other decapods by their abdominal structure. * This fossil exhibits clear brachyurous characteristics.

Examples
  • The study focused on the evolutionary adaptations of brachyurous species.
  • True crabs, like the blue crab, are classified as brachyurous.
Advanced Usage
  • The term can be used in a comparative sense within biological classification.
    • The larval development of brachyurous decapods differs significantly from that of the macrurous (long-tailed) ones.
Variants and Related Words
  • Brachyura (noun, proper): The suborder name itself, which includes crabs and similar crustaceans.
  • Brachyuran (noun or adjective): A more common synonym for "brachyurous." It can refer to a member of the Brachyura (noun) or describe something as belonging to it (adjective).
    • The museum's collection includes several brachyuran specimens.
Synonyms
  • Brachyuran (adj.): This is the direct and most frequently used synonym in scientific literature.
  • Short-tailed (adj.): A descriptive, non-technical term that captures the primary physical characteristic (though it is less precise).
Notes on Meaning

This word has a single, precise meaning within biological taxonomy. It does not have idiomatic or figurative uses. Its meaning is directly tied to the physical morphology (specifically, the short, hidden abdomen) of the animals in the suborder Brachyura.

brachyurous

A brachyurous crab scuttles sideways across the sandy beach.

Adjective
  1. of or belonging to the suborder Brachyura