snake·stone
(snāk′stōn′)n.1. A small stone or piece of porous substance reputed to cure snakebite.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
snakestone
(ˈsneɪkˌstəʊn) n (Complementary Medicine) obsolete a stone believed to be effective at curing snake bites
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
snakestone
A naturally-occurring stone with glass-like qualities believed by some to be the hardened saliva of adders and used to protect against evil.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited