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...

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..

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

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..

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..

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..

Volcanian :: Volcanian (a.) Volcanic.

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

Trass :: Trass (n.) A white to gray volcanic tufa, formed of decomposed trachytic cinders; -- sometimes used as a cement. Hence, a coarse sort of plaster or mortar, durable in water, and used to line cisterns and other reservoirs of water..

Vent :: Vent (n.) A small aperture; a hole or passage for air or any fluid to escape; as, the vent of a cask; the vent of a mold; a volcanic vent..

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

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..

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

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

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

Volcanic :: Volcanic (a.) Of or pertaining to a volcano or volcanoes; as, volcanic heat..

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

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.

Vulcanicity :: Vulcanicity (n.) Volcanicity.

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

Random Fonts

Most Popular