case knife Meaning, Definition & Usage

  1. noun a metal blade with a handle; used as cutlery
  2. noun a knife with a fixed blade that is carried in a sheath
    sheath knife.

WordNet

Case" knife` noun
Definitions
  1. A knife carried in a sheath or case. Addison.
  2. A large table knife; -- so called from being formerly kept in a case.

Webster 1913