hydranencephaly

noun

plural hydranencephalies
: a congenital defect of the brain in which fluid-filled cavities take the place of the cerebral hemispheres

Browse Nearby Words

Cite this Entry

“Hydranencephaly.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/hydranencephaly. Accessed 7 Jul. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!