costean

== English == === Etymology === Presumably from Cornish kodha (“to fall, happen”) + sten (“tin”). === Noun === costean (plural costeans) (mining) A trench in solid rock intersected by pits which reveals mineral veins. === Verb === costean (third-person singular simple present costeans, present participle costeaning, simple past and past participle costeaned) (mining) To search for lodes by 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, so as to cross all the veins between the two pits. ==== Related terms ==== costeaning === References === === Anagrams === octanes, Acteons, Catones, Secotan, TANESCO == Spanish == === Verb === costean third-person plural present indicative of costear