noun
fishery products; seafood
A somewhat formal or literary term for fish and shellfish as products of the sea; often used in economic or culinary contexts.
この地域は鱗介の宝庫として知られている。
This region is known as a treasure trove of seafood.
市場には新鮮な鱗介が並んでいた。
Fresh fishery products were lined up at the market.
Compound of 鱗 (rin, 'scale') and 介 (kai, 'shell'), referring to fish and shellfish respectively. The exact historical derivation is uncertain, but the spelling is conventionally associated with the meaning.