noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   An abnormal collection of cerebrospinal fluid (CSF) that communicates with the CSF space around the brain or spinal cord but is not confined by the dura mater.

Etymology

From pseudo- + meningocele.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.