from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A European annual plant (Lapsana communis) naturalized in eastern North America, having a milky juice and small yellow flower heads.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A flowering plant, Lapsana communis, that yields a milky juice
from the GNU version of the Collaborative International Dictionary of English
- n. A yellow-flowered composite herb (Lampsana communis), formerly used as an external application to the nipples of women; -- called also dock-cress.
from The Century Dictionary and Cyclopedia
- n. A plant, Lapsana communis: so called from its remedial use. See Lapsana and cress.
From its former use in folk medicine to treat breast tumors.(American Heritage® Dictionary of the English Language, Fourth Edition)