1. of or relating to ichthyology; concerned with the study of fish
Usage: formal; academic

Examples

• The museum's ichthyological collection includes specimens from over 500 fish species.
• She pursued an ichthyological career studying deep-sea fish in the Atlantic Ocean.
• The ichthyological society published a comprehensive guide to freshwater fish identification.
• His ichthyological research focused on the evolution of salmon populations.
• The university established an ichthyological laboratory to advance fish conservation efforts.