Costean

Definitions

  • Webster's Revised Unabridged Dictionary
    • v. i Costean To search after lodes. See Costeaning.
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Century Dictionary and Cyclopedia
    • costean In mining, to endeavor to ascertain the position of a lode by sinking pits through the soil to the bed-rock. The general direction of the lode having been, as supposed, approximately ascertained by means of work already done, the object of costeaning is to trace the lode still further through ground where its outcrop is not visible on the surface.
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Chambers's Twentieth Century Dictionary
    • v.i Costean kos-tēn′ to try to find a lode by sinking pits down to bed-rock
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Etymology

Webster's Revised Unabridged Dictionary
Cornish cothas, dropped + stean, tin
Chambers's Twentieth Century Dictionary
Corn. cothas, dropped, stean, tin.