Emmish

adjective informal
Behaviour characteristic of an Emotional (as distinct from a Parental or a Rational).
Source
The Gods Themselves

Batcar

noun
A battery-powered vehicle.
Source
The Lathe of Heaven

Urbapt

noun
An apartment in a high-density urban zone.
Source
True Names

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

Godshatter

noun
Fragments of a superintelligence melded with a human-level intellect.
Source
A Fire Upon the Deep

Agrav

noun
A material producing an anti-gravity effect.
Source
A Fire Upon the Deep

Manhome

noun proper
The Earth.
Source
Norstrilia

Hier

verb
To perceive the thoughts of others telepathically.
Origin
Corruption of ‘hear’.
Source
Norstrilia

Oophase

adjective
Of a child: born after the waning years of the On-Off sun.
Origin
Abbreviation of ‘out of phase’.
Source
A Deepness in the Sky

Tream

noun
A virtual reality scenario experienced via direct interface with the brain.
Origin
Portmanteau of ‘transmit’ and ‘dream’.
Source
The Algebraist