The Collaborative International Dictionary of English v.0.48:
Bard \Bard\, n. [Akin to Dan. & Sw. bark, Icel. b["o]rkr, LG. &
1. The exterior covering of the trunk and branches of a tree;
2. Specifically, Peruvian bark.
Bark bed. See Bark stove (below).
Bark pit, a pit filled with bark and water, in which hides
are steeped in tanning.
Bark stove (Hort.), a glazed structure for keeping tropical
plants, having a bed of tanner's bark (called a bark bed)
or other fermentable matter which produces a moist heat.