D defs.my
Entry 2 senses Webster, 1913

Bookholder

/(bo͝ok"hōld`ẽr)/ · Book·hold·er · IPA
01 n. A prompter at a theater.
  1. 1.
    A prompter at a theater.[Obs.]
  2. 2.
    A support for a book, holding it open, while one reads or copies from it.