gumbotil / ˈgʌm bə tɪl /

📖毕业后词汇贡布提尔贡布罗蒂尔贡布特尔冈布罗特

gumbotil 的定义

n. 名词 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.