[SoldierMedic]

Sushi means snack.

[Nathan Zachary]

su·shi (sū'shē)- Cold cooked rice dressed with vinegar that is shaped into bite-sized pieces and topped with raw or cooked fish,(usually raw) or formed into a roll with fish, egg, or vegetables and wrapped in seaweed.

[Nathan Zachary]

http://www.answers.com/sushi&r=67

sushi-

Japanese; thinly sliced raw fish.

In Japanese cuisine, sushi (寿司, sushi?) is a food made of vinegared rice combined with seafood. Most, but not all, fish used in sushi is un-cooked, but other ingredients may be cooked, blanched, sauteed, or marinated.