"condition of having an abnormally enlarged heart," 1855 (in German by 1826), from megalo- "enlarged, exaggerated" + cardia "heart" (from PIE root *kerd- "heart").
megadeath
megahertz
megalith
megalithic
megalo-
megalocardia
megalomania
megalomaniac
megalomaniacal
megalopolis
megaphone
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