ˈbrɪm n. & v. --n. 1 theedge or lip of a cup or othervessel, or of a hollow. 2 the projecting edge of a hat. --v.tr. & intr. (brimmed, brimming) fill or be full to the brim. øbrim overoverflow. øøbrimless adj. brimmed adj. (usu. in comb.). [ME brimme, of unkn. orig.]