noun
- the front part of the body of an arachnid or other arthropod, containing the head and thorax fused together
Usage: biology
Examples
- The spider’s prosoma contains its eyes, mouthparts, and legs.
- Scientists examined the prosoma of the fossil arthropod under a microscope.
- The prosoma is clearly separated from the abdomen in most arachnids.
- Damage to the prosoma can be fatal for spiders since it houses vital organs.
- The researcher measured the length of the prosoma to identify the species.
- Eight legs are attached to the prosoma of all spiders.