Term: volcanic glass: a kind of natural glass produced when molten lava cools very rapidly
Broader: volcanic rock: extrusive igneous rock solidified near or on the surface of the Earth | Unrelated: upland sandpiper: large plover-like sandpiper of North American fields and uplands
Broader: volcanic rock: extrusive igneous rock solidified near or on the surface of the Earth | Unrelated: military academy: an academy for training military officers
Broader: volcanic rock: extrusive igneous rock solidified near or on the surface of the Earth | Unrelated: russulaceae: used in some classification systems for the genus Russula
Broader: volcanic rock: extrusive igneous rock solidified near or on the surface of the Earth | Unrelated: shell: ammunition consisting of a cylindrical metal casing containing an explosive charge and a projectile; fired from a large gun
Broader: volcanic rock: extrusive igneous rock solidified near or on the surface of the Earth | Unrelated: fairy bluebird: fruit-eating mostly brilliant blue songbird of the East Indies
Broader: volcanic rock: extrusive igneous rock solidified near or on the surface of the Earth | Unrelated: art paper: a high-quality paper (usually having a filler of china clay)
Broader: volcanic rock: extrusive igneous rock solidified near or on the surface of the Earth | Unrelated: fir: nonresinous wood of a fir tree
Broader: volcanic rock: extrusive igneous rock solidified near or on the surface of the Earth | Unrelated: upland sandpiper: large plover-like sandpiper of North American fields and uplands
Broader: volcanic rock: extrusive igneous rock solidified near or on the surface of the Earth | Unrelated: hematocytopenia: an abnormally low number of red blood cells in the blood
Broader: volcanic rock: extrusive igneous rock solidified near or on the surface of the Earth | Unrelated: jewel: a person who is as brilliant and precious as a piece of jewelry