a rubber .
[guhm-boot] /ˈgʌmˌbut/ noun 1. a rubber . /ˈɡʌmˌbuːts/ plural noun 1. another name for Wellington boots (sense 1)
[guhm-buh-til] /ˈgʌm bə tɪl/ noun, Geology. 1. a sticky clay formed by the thorough weathering of glacial drift, the thickness of the clay furnishing means for comparing relative lengths of interglacial ages. /ˈɡʌmbətɪl/ noun 1. a sticky clay formed by the weathering of glacial drift
noun [first sense fr a repulsive character, Mr Gumby, in the television series Monty Python’s Flying Circus; second sense fr a person-shaped toy rubber (gum) figure named Gumby, seen in television shows and also portrayed by the comedian Eddie Murphy on the television series Saturday Night Live]
noun 1. (def 1).