1. Intellectually productive
   "a prolific writer"
   - fecund, fertile 
2. Bearing in abundance especially offspring
   "flying foxes are extremely prolific"; "a prolific pear tree"
   - fertile

See also: fruitful, productive

• as well
• as yet
• asa dulcis
• Asa Gray
• Asa Yoelson
• Asadha
• asafetida
• asafoetida
• Asahikawa
• ASALA
• Asama
• Asamiya
• asana
• Asanga
• ASAP
• Asaph Hall
• asarabacca
• Asarh
• Asarum
• Asarum canadense
• Asarum europaeum
• Asarum shuttleworthii
• Asarum virginicum
• ASAT
• Asbat al-Ansar