lava : Idioms & Phrases


Lava millstone

  • a hard and coarse basaltic millstone from the neighborhood of the Rhine.
Webster 1913

Lava ware

  • a kind of cheap pottery made of iron slag cast into tiles, urns, table tops, etc., resembling lava in appearance.
Webster 1913

pillow lava

  • noun lava that hardened in rounded shapes suggestive of pillows; believed to result from underwater eruptions
WordNet