direct vision


central vision
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Examples from the Web for direct vision

  • In the control room, Bors watched out of a direct-vision port, giving occasional glances to the screens.

    Talents, Incorporated|William Fitzgerald Jenkins
  • A direct-vision spectroscope is like a small telescope with prisms arranged inside the tube.

  • Several of the men had peered through the direct-vision ports, playing spotlight beams through them.

    The Highest Treason|Randall Garrett