periencephalitis
nounEtymology From peri- + encephalitis.
1
Inflammation of the cerebral membranes, particularly leptomeningitis or inflammation of the pia mater.
- Idiopathic non-septic periencephalitis may be produced by profound grief, protracted anxiety, especially when accompanied by great overwork, partial starvation combined with the gnawing anxiety of deep poverty, and also, it is affirmed, by sunstroke.1896, Horatio C. Wood, The Practice of Medicine, page 513: