'drainboard' definitions:

Definition of 'drainboard'

From: WordNet
noun
A board beside a kitchen sink and inclined to drain into the sink [syn: drainboard, draining board]

Definition of 'drainboard'

From: GCIDE
  • drainboard \drain"board`\ n. a board beside a kitchen sink having a surface inclined so as to drain into the sink.
  • Syn: draining board. [WordNet 1.5]