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WordNet 3.0Copyright Princeton University
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Short "hint"

n. - Metamorphic rock with approximately the same composition as a loose and crumbling earthy deposit consisting mainly of calcite or dolomite

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Usage examples (10)
  • Yes, it's local stone, called marlstone – basically a limestone that has iron in it, I think, hence the lovely rusty colour.
  • To extract the kerogen, you crush and heat the marlstone.
  • The leftover marlstone takes up about 30 percent more volume.
  • This is clearly a place that could use fill - crushed marlstone by the cubic mile.
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We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.