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Seafood Glossary

Plain-language definitions for seafood families, sourcing, storage, cooking and safety terms.

Plain-language terms used across the guide library.

Aquaculture
The farming of aquatic organisms such as fish, shellfish or seaweed.
Bivalve
A mollusc with two hinged shells, including clams, mussels, oysters and many scallops.
Brine
A salt-and-water mixture sometimes used for seasoning or processing. A recipe’s exact concentration and time can matter.
Carryover cooking
Continued internal heating after food leaves the heat source.
Cephalopod
A mollusc group that includes squid, octopus and cuttlefish.
Cold chain
Continuous temperature control from harvest or processing through transport, retail and home storage.
Cold smoking
Smoking at temperatures that may not cook the seafood. It requires specialized controls and is not treated as a simple home method here.
Crustacean
An aquatic animal such as shrimp, crab, lobster, prawn or crayfish.
Curing
Using salt, sugar, acid or other controls to change food. Curing does not automatically make seafood safe or shelf-stable.
Depuration
A controlled commercial process intended to reduce certain microbial contamination in live bivalve shellfish.
Fillet
A lengthwise cut of fish removed from the skeleton.
Fish steak
A cross-cut portion that may include bone and skin.
Glaze
A protective layer of ice on frozen seafood, or a finishing coating applied during cooking.
Hot smoking
Smoking that also cooks the seafood when a tested process and safe temperature are used.
Marine biotoxin
A toxin produced by certain marine organisms that can accumulate in shellfish; cooking may not destroy it.
Mollusc
A broad animal group including bivalves, squid, octopus and snails.
Poaching
Cooking gently in liquid below a hard boil.
Previously frozen
A product that was frozen and later thawed for sale.
Reduced-oxygen packaging
Packaging such as vacuum packs that limits oxygen and may carry specific thawing or storage instructions.
Shellfish tag
Traceability information associated with commercially sold bivalve shellfish.
Shucked
Removed from the shell.
Stock
A flavourful liquid made by gently extracting suitable bones, shells or other ingredients, then straining and cooling safely.
Traceability
Information that helps identify a seafood product and its source or supply-chain history.
Two-zone grilling
A grill setup with a hotter direct area and a cooler indirect area.