Urbapt

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

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

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

Ziphead

noun informal
A person who has been made into a cognitive computer.
Source
A Deepness in the Sky