noun
- Plural of prosoma; the anterior body region of arachnids and some other arthropods, consisting of the head and thorax fused together.
Usage: zoology; technical term; used in scientific classification and anatomy of spiders, scorpions, and related creatures
Examples
- The prosomas of spiders are covered with a hard exoskeleton.
- Arachnologists examine the prosomas to identify different species.
- The prosomas of scorpions contain the venom glands.
- Under the microscope, the prosomas showed distinctive markings.
- The prosomas and abdomens are the two main body divisions in arachnids.