YY
From Wikipedia, the free encyclopedia
YY may refer to:
- Yo-yo
- Yakety Yak: The Coasters doo-wop song
- Yakkity Yak: A Nicktoons Network show.
- XYY syndrome: A generic aneuploidy in which the Y chromosome is duplicated.
- Peptide YY 3-36: A peptide that is secreted by the gut in response to a meal, and reduces appetite.
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