underdraw: Meaning and Definition of

un•der•draw

Pronunciation: (un"dur-drô'), [key]
— -drew, -drawn, -draw•ing.
  1. to line the underside of (a structure, as a floor) with plasterwork, boarding, or the like.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.