1. A geological change in the mineral content of rock after the rock has formed 
2. (biology) development of the embryo

Type of: metamorphism

Encyclopedia: Epigenesis Epigenesis, genetic

• upsweep
• upswept
• upswing
• upsy-daisy
• uptake
• upthrow
• upthrust
• uptick
• uptight
• uptil
• uptime
• Upton Beall Sinclair
• Upton Sinclair
• uptown
• uptrend
• upturn
• upturned
• Upupa
• Upupa epops
• Upupidae
• upward
• upwardly
• upwardly mobile
• upwards
• upwelling