Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • Large; of exaggerated size or greatness: megalocephaly.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • large, great or exaggerated

from the GNU version of the Collaborative International Dictionary of English

  • See meg-.

from The Century Dictionary and Cyclopedia

  • A prefix, meaning ‘great’ or ‘large’; specifically, in physical, a prefix sometimes used in place of the shorter forms meg- and mega- to denote that a unit is multiplied by one million.

Etymologies

Greek, from megas, megal-, great; see meg- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek μέγας. (Wiktionary)

Examples

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