frozen fish; refrigerated fish
Refers to fish that has been frozen for preservation or transport. Often used in commercial or culinary contexts.
I bought frozen fish at the supermarket.
Frozen fish is suitable for long-term storage.
冷凍魚 is fish that has been frozen, the standard contrast to 鮮魚 (fresh, unfrozen fish) in markets and shops.
Compound of 冷凍 (freezing) and 魚 (fish).