1. Of or pertaining to the epigenesis; produced according to the theory of epigenesis 
2. (biology) arising from non-genetic external factors

Encyclopedia: Epigenetic

• upper-level
• upper-lower-class
• upper-middle-class
• Upper-Normandy
• uppercase
• uppercut
• uppermost
• uppish
• uppishly
• uppishness
• uppity
• uppityness
• UPPP
• Uppsala
• upraise
• upraised
• uprate
• uprear
• upright
• upright piano
• uprightly
• uprightness
• uprise
• uprising
• upriver