Definitions:

1. A canned field ration issued by the United States Army. NOUN
   • The museum's exhibit on military life included a display of C-rations, showing the variety of meals provided to troops during past conflicts.
2. A type of pre-packaged ready-to-eat meal used by the United States military for service members in combat or other field conditions where normal food facilities are not available. NOUN
   • He opened a can from the C-ration box, finding it contained beef stew, which was a welcome change from the usual contents.

Synonyms:

• army ration
• combat ration
• field ration
• military ration
• war ration