|a chattering or flighty, light-headed person.|
|a gadget; dingus; thingumbob.|
|graben (grä'bən) Pronunciation Key
A usually elongated block of rock that is bounded by parallel geologic faults along its two longest sides, and has a lower elevation than the rock at its sides. Grabens form where rock is being pulled apart by tectonic forces. The East African Rift Valley is a graben.