Cite
 

Meaning of underrun

un•der•run

Pronunciation: (un"dur-run'), [key]
— v., n. -ran, -run, -run•ning,
—v.t.
  1. to run, pass, or go under.
  2. to pass beneath (a stretched rope, net, etc.) in a boat or the like for the purpose of inspection or repairs.
—n.
  1. something that runs or passes underneath, as a current.
  2. an instance of costing or spending less than estimated.
  3. a production run of a manufactured or printed item below the quantity ordered.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.