1. Moving upward or along at a considerable height
   "some highflying fighter pilot fired a cannon shell into it" 
2. Extravagant or ambitious or extreme in aims or opinions
   "they did not understand what had happened at the once highflying company"

See also: ascending, unrestrained

• physostigmine
• phytelephas
• Phytelephas macrocarpa
• phyto-
• phytochemical
• phytochemist
• phytochemistry
• phytogeography
• phytohormone
• Phytolacca
• Phytolacca acinosa
• Phytolacca americana
• Phytolacca dioica
• Phytolaccaceae
• phytologist
• phytology
• Phytomastigina
• phyton
• phytonadione
• phytopathology
• phytophagic
• phytophagous
• phytophilous
• Phytophthora
• Phytophthora citrophthora