Orthogony

noun
The structure of actuality; orthogonal futures and pasts that fluoresce from the universe as it is, and from those into others, and others, always at right angles to the stream of time.
Origin
Back-formation from ‘orthogonal’.
Source
Great Work of Time

Roundvid

noun
A two-dimensional video recording – contrast with trivid.
Origin
Presumed to be coined after the full potential image area of a lens.
Source
A Borrowed Man

Microhistories

noun plural
Marginally different strands of reality, caused by sequences of events where various different things happen with subatomic particles throughout the universe.
Source
Oracle

Spimescape

noun
An augmented projection of the current locale.
Origin
Spime, an object that can be tracked in space and time.
Source
The Quantum Thief

Astralnaut

noun
A chosen individual who explores and documents the Astral Plane.
Origin
Pun on ‘astronaut’.
Source
Control

Alternity

noun
A parallel timeline.
Origin
Abbreviated from ‘alternate reality’.
Source
Unholy Land

Anachronopede

noun
A vessel that allows the occupant to travel through time.
Origin
Derived from aná (upon), khrónos (time), and pedes (“one who walks”).
Source
The Shape of My Name

Trid

adjective
Having or appearing to have length, breadth, and depth.
Origin
Abbreviation of ‘tri-dimensional’.
Source
Embassytown

Planoform

verb
A method of faster-than-light travel that involves compressing space into two dimensions.
Origin
Pairing of ‘plane’ (a flat surface) and ‘form’.
Source
The Game of Rat and Dragon

Parachronion

noun
A device enabling travel to parallel time lines.
Origin
Derived from pará (nearby) and khrónos (time).
Source
Eutopia

Chrownotransductionology

noun
Temporal slippage induced by chrownons; in other words: timely travel.
Origin
Professor Gladys Chrowdingler, discoverer of the chrownon.
Source
Automated Alice

Gridfire

noun
A method of creating a dimensional rift that releases astronomical amounts of energy into realspace from the energy grid between universes.
Source
Consider Phlebas