from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A stone once worn as a charm and believed to have been formed in the body of a toad.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A small stone, once believed to be a jewel embedded in the head of a toad, worn as a amulet

from the GNU version of the Collaborative International Dictionary of English

  • n. A local name for the igneous rocks of Derbyshire, England; -- said by some to be derived from the German todter stein, meaning dead stone, that is, stone which contains no ores.
  • n. Bufonite, formerly regarded as a precious stone, and worn as a jewel. See Bufonite.

from The Century Dictionary and Cyclopedia

  • n. Any one of various natural or artificial objects resembling a toad in form or color, or which were believed to have been formed within the body of that animal, and which for many centuries, and over a large part of Europe, were held in high regard, and preserved with the greatest care. ;
  • n. In geology, a volcanic rock varying in texture from a soft crumbly ash to a hard close-grained greenstone, several beds of which occur in the magnesian limestone of the lead-mining district of Derbyshire


Sorry, no etymologies found.



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  • "Shakspere refers to the toadstone in the lines:

    Sweet are the uses of adversity,

    Which, like the toad, ugly and venomous,

    Wears yet a precious jewel in his head.

    (As you Like it, ii. 1. 12-14.)"

    --The Century Dictionary and Cyclopedia

    January 18, 2011

  • Stone thought to grow inside a toad and have magic powers. (from Phrontistery)

    May 24, 2008