Dictionary.net

• Deuteroscopia, from 'the second,' and 'I view.' Second sight. A fancied power of seeing future things or events.

1846 - Medical lexicon: a dictionary of medical science
By Robley Dunglison

• A form of hallucination or deception in which the individual pretends to be endowed with "second sight," i. e., the capability of foreseeing future events. [Gr.]

1916 - Appleton's medical dictionary
By Smith Ely Jelliffe