Term: pitchstone: dark acid granitic glass
Broader: volcanic glass: a kind of natural glass produced when molten lava cools very rapidly | Unrelated: guanabenz: antihypertensive drug (trade name Wytensin) that reduces blood pressure by its effect on the central nervous system
Broader: volcanic glass: a kind of natural glass produced when molten lava cools very rapidly | Unrelated: uterine artery: a branch of the internal iliac artery that supplies the uterus and the upper part of the vagina
Broader: volcanic glass: a kind of natural glass produced when molten lava cools very rapidly | Unrelated: gempylid: snake mackerels; elongated marine fishes with oily flesh; resembles mackerels; found worldwide
Broader: volcanic glass: a kind of natural glass produced when molten lava cools very rapidly | Unrelated: extirpation: the act of pulling up or out; uprooting; cutting off from existence
Broader: volcanic glass: a kind of natural glass produced when molten lava cools very rapidly | Unrelated: hideaway: an area where you can be alone
Broader: volcanic glass: a kind of natural glass produced when molten lava cools very rapidly | Unrelated: tau: the 19th letter of the Greek alphabet
Broader: volcanic glass: a kind of natural glass produced when molten lava cools very rapidly | Unrelated: disappointment: a feeling of dissatisfaction that results when your expectations are not realized
Broader: volcanic glass: a kind of natural glass produced when molten lava cools very rapidly | Unrelated: sibyl: (ancient Rome) a woman who was regarded as an oracle or prophet
Broader: volcanic glass: a kind of natural glass produced when molten lava cools very rapidly | Unrelated: ammonium nitrate: used as an explosive and fertilizer and rocket propellant
Broader: volcanic glass: a kind of natural glass produced when molten lava cools very rapidly | Unrelated: radiotelephone: a telephone that communicates by radio waves rather than along cables