(Geological Science)rarean amygdaloidal basalt occurring in the limestone regions of Derbyshire [C18: perhaps from a supposed resemblance to a toad's spotted skin] Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, ...
(Geological Science)rarean amygdaloidal basalt occurring in the limestone regions of Derbyshire [C18: perhaps from a supposed resemblance to a toad's spotted skin] Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, ...
toadstonedoi:10.1007/978-3-540-72816-0_21756an old Derbyshire term for certain amygdaloidal basalt lava.