Lightsabre

noun
A sword consisting of a hilt which projects a self-terminating blade of plasma.
Origin
Sabre, a type of military sword.
Source
Star Wars Episode IV: A New Hope

Loglo

noun
Skyglow caused by neon advertisements featuring corporate logos.
Origin
Abbreviation of ‘logo glow’.
Source
Snow Crash

Looper

noun
An assassin hired to kill victims transported back in time from the future.
Source
Looper

Loyaltician

noun
An advisor in matters of fealty.
Source
Surface Detail

Luxvid

noun
A brand of ocular prosthesis.
Origin
Abbreviated from ‘luxurious video’.
Source
The Three Stigmata of Palmer Eldritch

Manhome

noun proper
The Earth.
Source
Norstrilia

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