Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of volcanic is as below...

Etnean :: Etnean (a.) Pertaining to Etna, a volcanic mountain in Sicily..

Mascagnite :: Mascagnite (n.) Native sulphate of ammonia, found in volcanic districts; -- so named from Mascagni, who discovered it..

Eruptive :: Eruptive (a.) Produced by eruption; as, eruptive rocks, such as the igneous or volcanic..

Volcanization :: Volcanization (n.) The act of volcanizing, or the state of being volcanized; the process of undergoing volcanic heat, and being affected by it..

Sulphur :: Sulphur (n.) A nonmetallic element occurring naturally in large quantities, either combined as in the sulphides (as pyrites) and sulphates (as gypsum), or native in volcanic regions, in vast beds mixed with gypsum and various earthy materials, from which it is melted out. Symbol S. Atomic weight 32. The specific gravity of ordinary octohedral sulphur is 2.05; of prismatic sulphur, 1.96..

Volcanic :: Volcanic (a.) Produced by a volcano, or, more generally, by igneous agencies; as, volcanic tufa..

Pearlstone :: Pearlstone (n.) A glassy volcanic rock of a grayish color and pearly luster, often having a spherulitic concretionary structure due to the curved cracks produced by contraction in cooling. See Illust. under Perlitic..

Volcanity :: Volcanity (n.) The quality or state of being volcanic, or volcanic origin; volcanicity..

Vulcanicity :: Vulcanicity (n.) Volcanicity.

Leucite :: Leucite (n.) A mineral having a glassy fracture, occurring in translucent trapezohedral crystals. It is a silicate of alumina and potash. It is found in the volcanic rocks of Italy, especially at Vesuvius..

Spherulite :: Spherulite (n.) A minute spherical crystalline body having a radiated structure, observed in some vitreous volcanic rocks, as obsidian and pearlstone..

Cone :: Cone (n.) Anything shaped more or less like a mathematical cone; as, a volcanic cone, a collection of scoriae around the crater of a volcano, usually heaped up in a conical form..

Lapilli :: Lapilli (n. pl.) Volcanic ashes, consisting of small, angular, stony fragments or particles..

Vulcanian :: Vulcanian (a.) Volcanic.

Vesicle :: Vesicle (n.) A small cavity, nearly spherical in form, and usually of the size of a pea or smaller, such as are common in some volcanic rocks. They are produced by the liberation of watery vapor in the molten mass..

Pumice :: Pumice (n.) A very light porous volcanic scoria, usually of a gray color, the pores of which are capillary and parallel, giving it a fibrous structure. It is supposed to be produced by the disengagement of watery vapor without liquid or plastic lava. It is much used, esp. in the form of powder, for smoothing and polishing. Called also pumice stone..

Solfatara :: Solfatara (n.) A volcanic area or vent which yields only sulphur vapors, steam, and the like. It represents the stages of the volcanic activity..

Intercolline :: Intercolline (a.) Situated between hills; -- applied especially to valleys lying between volcanic cones.

Pozzolana :: Pozzolana (n.) Volcanic ashes from Pozzuoli, in Italy, used in the manufacture of a kind of mortar which hardens under water..

Lithophyse :: Lithophyse (n.) A spherulitic cavity often with concentric chambers, observed in some volcanic rocks, as in rhyolitic lavas. It is supposed to be produced by expanding gas, whence the name..

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