Definitions

from The Century Dictionary.

  • In mining, to endeavor to ascertain the position of a lode by sinking pits through the soil to the bed-rock.

from the GNU version of the Collaborative International Dictionary of English.

  • intransitive verb To search after lodes. See costeaning.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • verb mining To search for lodes.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

Cornish cothas, dropped + stean, tin.

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Examples

  • BRL has completed a successful trial quarrying and bauxite extraction costean programme of some 300 tonnes of bauxite for bulk sample for overseas customers.

    WA Business News - Latest News 2009

  • BRL has completed a successful trial quarrying and bauxite extraction costean programme of some 300 tonnes of bauxite for bulk sample for overseas customers.

    WA Business News - Latest News 2009

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