(of an egg) fried without breaking the yolk or being turned over, with the yolk remaining visible and somewhat liquid inside.
- Compare over easy.
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British Dictionary definitions for sunny-side up
(of eggs) fried on one side only
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