Aethersite
From Warhammer 40k - Lexicanum
Aethersite is a term created by the Xenologist Daleth Tencin to describe Warp-born parasites.[1]
These creatures often grow or reproduce in the flesh of the host, but do not always devour them. Some Aethersites have also adapted the ability to inhabit their hosts for years at a time.[1]
Known Aethersites
Sources
- 1: Liber Xenologis, pgs. 168-169 - Medusae