1. a small freshwater fish native to East Asia, commonly used in scientific research and as an aquarium fish
Usage: scientific

Examples

• The medaka is an important model organism in developmental biology research.
• Scientists study medaka embryos to understand vertebrate development.
• The aquarium contained several colorful medaka swimming among the plants.
• Medaka can adapt to various water conditions in laboratory settings.
• The genetics laboratory maintains colonies of medaka for ongoing experiments.