Marain

noun
The shared constructed language of the Culture.
Origin
Possibly derived from maireannach (long-lived).
Source
Consider Phlebas

Mectec

noun informal
Abbreviation of ‘mise-en-crime technical investigator’.
Origin
Pun on mise en scène
Source
The City & The City

Megatech

noun proper
A manufacturer of prosthetic bodies.
Origin
Truncation of ‘mega-technology’.
Source
Ghost in The Shell

Memcordist

noun
A person who makes recordings of their sensorium.
Origin
Portmanteau of ‘memory’ and ‘recordist’.
Source
Central Station

Memrionics

noun
The science and technology of developing Artificial Intelligence.
Origin
Formed from ‘memory’ and ‘electronics’.
Source
The Regression Test

Mentat

noun
A class of Imperial citizens trained for supreme accomplishments of logic; human computers.
Origin
Possibly abbreviated from ‘mental attainment’.
Source
Dune

Metacortex

noun
A distributed cloud of software agents that augments the computational power of the human brain.
Source
Accelerando

Metalogical

adjective
Short form of psycho-physio-philosophilogical: relating to the mentality, morphology, and ideology of species.
Source
Look to Windward

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

Microsoft

noun
A software package that directly interfaces with the brain via a wetware implant.
Source
Neuromancer

Millenniaire

noun
A person who possesses a fortune of time.
Origin
Portmanteau of ‘millennium’ and ‘millionaire’.
Source
The Quantum Thief

Mockman

noun
An animal bred for slavery, genetically similar to a human.
Source
Good Mountain