氷ひょう河が擦さっ痕こんひょうがさっこんMeanings1nounglacial striae; glacial striations; glacial groovesTechnical term in geology for scratches or grooves on bedrock caused by glacial abrasion.この地ち域いきの岩がん盤ばんには、氷ひょう河が擦さっ痕こんがはっきりと残のこ