'bookend' definitions:

Definition of 'bookend'

(from WordNet)
noun
A support placed at the end of a row of books to keep them upright (on a shelf or table)

Definition of 'bookend'

From: GCIDE
  • bookend \book"end\ n. a support placed at the end of a row of books to keep them upright (on a shelf or table). [WordNet 1.5]