1. (medicine) difficulty in breathing when upright, relieved by lying flat

Encyclopedia: Platypnea

• Yemen
• Yemeni
• Yemeni fils
• Yemeni monetary unit
• Yemeni rial
• yen
• Yenisei
• Yenisei River
• Yenisei-Samoyed
• Yeniseian
• Yenisey
• Yenisey River
• yenta
• yeoman
• yeoman of the guard
• yeomanry
• yep
• yer
• yerba buena
• yerba mansa
• yerba santa
• Yerevan
• Yerkes
• Yersin
• Yersinia pestis