Adrenal Glands are a Tyranid Biomorph common amongst front-line Tyranid creatures. Small organisms attach themselves to Tyranids and slowly secrete powerful chemicals into the host's bloodstream during combat to boost it into a hyperactive bloodlust.
- 1: Codex: Tyranids (4th Edition), pg. 32
- 2: Codex: Tyranids (5th Edition), pg. 84
- 3: Games Workshop Carnifex Brood (last accessed 10/29/2020)