noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   macrencephaly uncountable
2. 2
   an abnormally large head; differs from hydrocephalus because there is no increased intracranial pressure and the overgrowth is symmetrical wordnet

Synonyms

All synonyms

macrocephalymacrocephalymegalocephaly

Etymology

From mega- + -cephaly.

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