Definition of lap desk in English:

lap desk

noun

US
  • A portable writing case or surface, especially one for use on the lap.

    • ‘Writing boxes, lap desks, and sewing boxes (some with their original tools) were also made by the Shakers and elsewhere in New England.’
    • ‘If she doesn't already have one, I'd suggest a nice vintage fountain pen to go with the lap desk.’
    • ‘Instead I write in bed on the lap desk given to me by a friend.’