pillow lava

pillow lava

English

Pillow lava

Noun

pillow lava (countable and uncountable, plural pillow lavas)

1. (geology, uncountable) The rock type, resembling pillows, typically formed when lava emerges from an underwater volcanic vent or a lava flow enters the ocean.
2. (geology, countable) A rock of that type.
   • 2004, Richard Fortey, The Earth, Folio Society 2011, p. 45:

     Ancient pillow lavas are easily recognisable. I first saw them underneath a lighthouse on the coast near Fishguard in western Wales […]

Hypernyms

• lava

Translations

rock type

Finnish: tyynylaava (fi) Icelandic: bólstraberg (is) n Irish: laibhe adhartach f