n.
Any of numerous small, green, nonvascular plants of the division Marchantiophyta, growing in moist environments and consisting of either a leafy mosslike structure or a flat thallus that is often lobed.
[From its use in treating diseases of the liver.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
