blue lias

noun

a type of rock composed of alternating layers of bluish shale or clay and grey argillaceous limestoneSee also Lias

Nearby words

  1. blue jeans,
  2. blue jet,
  3. blue john,
  4. blue law,
  5. blue laws,
  6. blue line,
  7. blue lips,
  8. blue lotus,
  9. blue mantle,
  10. blue marlin

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012