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...

Scoria :: Scoria (n.) Cellular slaggy lava; volcanic cinders.

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..

Tufa :: Tufa () A friable volcanic rock or conglomerate, formed of consolidated cinders, or scoria..

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

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

Fumarole :: Fumarole (n.) A hole or spot in a volcanic or other region, from which fumes issue..

Hornito :: Hornito (n.) A low, oven-shaped mound, common in volcanic regions, and emitting smoke and vapors from its sides and summit..

Fiorite :: Fiorite (n.) A variety of opal occuring in the cavities of volcanic tufa, in smooth and shining globular and botryoidal masses, having a pearly luster; -- so called from Fiora, in Ischia..

Volcanically :: Volcanically (adv.) Like a volcano.

Crystallite :: Crystallite (n.) A minute mineral form like those common in glassy volcanic rocks and some slags, not having a definite crystalline outline and not referable to any mineral species, but marking the first step in the crystallization process. According to their form crystallites are called trichites, belonites, globulites, etc..

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..

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

Agglomerate :: Agglomerate (n.) A mass of angular volcanic fragments united by heat; -- distinguished from conglomerate.

Belonite :: Belonite (n.) Minute acicular or dendritic crystalline forms sometimes observed in glassy volcanic rocks.

Volcanian :: Volcanian (a.) Volcanic.

Peperino :: Peperino (n.) A volcanic rock, formed by the cementing together of sand, scoria, cinders, etc..

Volcanicity :: Volcanicity (n.) Quality or state of being volcanic; volcanic power.

Volcanic :: Volcanic (a.) Changed or affected by the heat of a volcano.

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..

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

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