The story
Shortening of periaqueductal gray matter.
First known use, by meaning
- From 20th c. The region surrounding the cerebral aqueduct in the midbrain, playing an important role in analgesia.
Etymology from Wiktionary, CC BY-SA 4.0.
periaqueductal gray
Today it means: The region surrounding the cerebral aqueduct in the midbrain, playing an important role in analgesia. Full definition →
First used 20th c.