1. a marine fish with a deep, compressed body and silvery coloration, found in warm Atlantic waters
Usage: ichthyology

Examples

• The lookdown is easily recognized by its extremely flattened body.
• Anglers often catch lookdown fish near coral reefs.
• The lookdown’s silvery scales make it nearly invisible from below.
• Young lookdown fish are commonly found in shallow coastal waters.
• The lookdown belongs to the jack family of fishes.