1. Of or relating to the stratosphere 
2. At a very high level, with great success
   "his career went stratospheric"

Encyclopedia: Stratospheric

• Epistle to the Ephesians
• Epistle to the Galatians
• Epistle to the Hebrews
• Epistle to the Philippians
• Epistle to the Romans
• Epistle to Titus
• epistolary
• epistolatory
• epistrophe
• epistyle
• epitaph
• epitasis
• epitaxy
• epithalamium
• epithelial
• epithelial cell
• epithelial duct
• epithelial tissue
• epitheliod
• epithelioma
• epithelium
• epithet
• epithetical
• epitome
• epitomise