Definitions

from The Century Dictionary.

  • noun In geology, a grayish or greenish compact volcanic rock, composed of feldspar and augite or horn-blende, and allied to basalt.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Geol.) A grayish or greenish compact rock, composed of feldspar and augite, and allied to basalt.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun uncountable A type of gray, volcanic rock, typically containing feldspar and iron
  • noun A building made of any type of gray stone, such as limestone

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

gray +‎ stone

Examples

Comments

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