traprock

[trap-rok] /ˈtræpˌrɒk/
noun
1.
trap3 .
Origin
1805-15; trap3 + rock1
Examples from the web for traprock
  • Outdoor-lovers will find that the finest way to explore its valleys, rolling hills and traprock ridges is on foot.
  • Tracings of ancient ferns, beetles carved in traprock.
  • traprock was drilled and blasted from a single bench in the quarry.
  • Rare traprock glade communities will become degraded with excessive human disturbance.
  • It typically grows in clusters or tufts on dry limestone, conglomerate, or traprock cliffs and ledges.
British Dictionary definitions for traprock

trap3

/træp/
noun
1.
any fine-grained often columnar dark igneous rock, esp basalt
2.
any rock in which oil or gas has accumulated
Word Origin
C18: from Swedish trappa stair (from its steplike formation); see trap1

traprock

/ˈtræpˌrɒk/
noun
1.
another name for trap3