1. The quantity contained in (or the capacity of) a tank or tanks
   "The ship's tankage was sufficient for a transatlantic voyage"
    
2. The act of storing in tanks
   "The oil refinery increased its tankage capacity to meet growing demand"
    
3. The charge for storing something in tanks
   "The oil refinery paid tankage fees to the storage facility"

Derived forms: tankages

Type of: charge, indefinite quantity, storage