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megacephaly

British  
/ ˌmɛɡəsɪˈfælɪk, ˌmɛɡəˈsɛfəlɪ /

noun

  1. the condition of having an unusually large head or cranial capacity. It can be of congenital origin or result from an abnormal overgrowth of the facial bones Compare microcephaly

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • megacephalic adjective

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.