ration

Noun

• a fixed portion that is allotted (especially in times of scarcity)

• the food allowance for one day (especially for service personnel)
  • the rations should be nutritionally balanced
    

Verb

• distribute in rations, as in the army
  • Cigarettes are rationed
    

• restrict the consumption of a relatively scarce commodity, as during war
  • Bread was rationed during the siege of the city