Psychopraxiscope

noun
A device purported to offer instantaneous viewing of any subject’s thoughts.
Source
Great Breakthroughs in Darkness

Chiaroscurography

noun
The photographic process invented by Leonardo da Vinci.
Origin
Formed from chiaro (bright), scuro (dark), and gráphō (to draw).
Source
Bruno’s Shadow

Neighborling

noun
A cohabitant from a lower level of the great indoors.
Source
Love Comes to the Middleman