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出典:Wiktionary
出典:『Wiktionary』 (2025/10/24 18:27 UTC 版)
Presumably from Cornish kodha (“to fall, happen”) + sten (“tin”).
costean (plural costeans)
costean (third-person singular simple present costeans, present participle costeaning, simple past and past participle costeaned)
出典:Wikipedia
出典:『Wikipedia』 (2009/12/16 18:22 UTC 版)
Costeaning is the process by which miners seek to discover metallic lodes. It consist in sinking small pits through the superficial deposits to the solid rock, and then driving from one pit to another across the direction of the vein, in such manner as to cross all the veins between the two pits.
costean