Source : Webster's Revised Unabridged Dictionary (1913)

Peepul tree \Pee"pul tree`\ [Hind. p[=i]pal, Skr. pippala.]
   (Bot.)
   A sacred tree ({Ficus religiosa}) of the Buddhists, a kind of
   fig tree which attains great size and venerable age. See {Bo
   tree}. [Written also {pippul tree}, and {pipal tree}.]