Bedeguar \Bed"e*guar\, Bedegar \Bed"e*gar\, n. [F., fr. Per.
b[=a]d-[=a]ward, or b[=a]d-[=a]wardag, 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 ros[ae]}). It was once supposed to have medicinal
properties.
[1913 Webster]