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