adjective
- having a rough edge with tiny projections, especially describing fish scales with small spines along the posterior margin
Usage: biological; ichthyology
Examples
- Bass and perch have ctenoid scales that feel rough to the touch.
- The ichthyologist examined the ctenoid scales under a microscope.
- Ctenoid scales are found in many advanced bony fish species.
- The rough texture comes from the ctenoid nature of the fish’s scales.
- Students learned to distinguish between cycloid and ctenoid scale types.
- The ctenoid scales help reduce drag as the fish swims through water.