1. of, relating to, or resembling a chaeta or chaetae (bristle-like structures in invertebrates)
Usage: biology; zoology

Examples

• The chaetal structures on the worm's body help it move through soil.
• Marine biologists examined the chaetal appendages of the polychaete worm.
• The chaetal arrangement varies among different species of annelids.
• Under the microscope, the chaetal bristles were clearly visible.
• The organism's chaetal features are important for classification.