Bed"e*guar, Bed"e*gar(?), n. [F., fr. Per. bad-award, or bad-awardag, prop., a kind of white thorn or thistle.]
A gall produced on rosebushes, esp. on the sweetbrier or eglantine, by a puncture from the ovipositor of a gallfly (Rhodites rosae). It was once supposed to have medicinal properties.
© Webster 1913.