D defs.my
Entry 1 sense Webster, 1913

Biophotophone

· Bi·o·pho·to·phone · IPA
01 n. An instrument combining a cinematograph and a phonograph so that the moving figures on the screen are accompanied by the appropriate sounds…
  1. 1.
    An instrument combining a cinematograph and a phonograph so that the moving figures on the screen are accompanied by the appropriate sounds; -- an archaic term replaced by movie projector.[archaic] See: movie projector