单词	pingo
释义	pingo /ˈpɪŋɡəʊ / noun (plural pingos) Geology A dome-shaped mound consisting of a layer of soil over a large core of ice, occurring in permafrost areas.What's left behind are new surfaces: kettle moraines, outwash plains, pingos, scoured barren grounds.... Less widespread, but equally distinctive, are ice-cored mounds, or pingos. The review by Watson of the periglacial environment in Britain concluded that continuous permafrost was present long enough for widespread formation of features such as ice wedges and pingos. Origin 1920s: from Inuit pinguq 'nunatak'.
随便看	medrese medric medrick medroxyprogesterone medspeak medulla medulla oblongata medullary medullary carcinoma medullary plate medullary ray medullary sheath medullate medullated medullation medullitis medulloblast medulloblastoma Medullosa medullosan medullose medullosean medusa medusa fish Medusa-head

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