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prosoma
This term is a specialized anatomical descriptor used primarily in zoology and arachnology. It describes the cephalothorax of chelicerates, distinguishing the front section of the body from the posterior opisthosoma. Because it is a technical term, it is almost exclusively found in scientific literature, academic textbooks, or biological research papers rather than in general conversation.
In a taxonomic context, the prosoma is characterized by the integration of the head and thorax into a single unit. This structural fusion is a defining trait of arachnids, including spiders and scorpions, as well as horseshoe crabs, serving as the primary hub for sensory organs and locomotion appendages.
Meanings
Examples
The prosoma of a spider contains the brain and the stomach.
Look at how the legs are all attached to the prosoma.
The horseshoe crab has a large, horseshoe shaped prosoma.
I wonder if the prosoma of this specimen is damaged.
The chelicerae are located at the very front of the prosoma.
The prosoma is essentially a fused head and thorax.
The prosoma is essentially a fused head and thorax.
The hard carapace protects the internal organs within the prosoma.
Does the prosoma vary in size between different species of mites?