What is "deuteroscopy"

Deuteroscopy \Deu`ter*os"co*py\, n. [Gr. ? second + -scopy.]

1. Second sight.

   I felt by anticipation the horrors of the Highland seers, whom their gift of deuteroscopy compels to witness things unmeet for mortal eye.
   --Sir W. Scott.

2. That which is seen at a second view; a meaning beyond the literal sense; the second intention; a hidden signification.
   --Sir T. Browne.

n. 1 second sight 2 That which is seen at a second view; a meaning beyond the literal sense; the second intention; a hidden signification.