a moss-like growth found on rosebushes, caused by a reaction by the bush to the egg-laying process of the gall wasp or gallfly
bedeguar in American English
(ˈbedɪˌɡɑːr)
noun
a gall on roses, esp. the sweetbrier, produced by a gall wasp
Also: bedegar
Word origin
[1570–80; ‹ MF ‹ Ar ‹ Pers bād-āwar(d) windfall, lit., wind-brought]This word is first recorded in the period 1570–80. Other words that entered Englishat around the same time include: bracket, huddle, pigeonhole, refraction, repeater