'Bo tree' definitions:

Definition of 'bo tree'

noun

Fig tree of India noted for great size and longevity; lacks the prop roots of the banyan; regarded as sacred by Buddhists [syn: pipal, pipal tree, pipul, peepul, sacred fig, bo tree, Ficus religiosa]

From: GCIDE

Bo tree \Bo" tree`\ (Bot.) The peepul tree; esp., the very ancient tree standing at Anurajahpoora in Ceylon, grown from a slip of the tree under which Gautama is said to have received the heavenly light and so to have become Buddha. [1913 Webster]
The sacred bo tree of the Buddhists ({Ficus religiosa}), which is planted close to every temple, and attracts almost as much veneration as the status of the god himself. . . . It differs from the banyan (Ficus Indica) by sending down no roots from its branches. --Tennent. [1913 Webster]