Volcanic Vol*can"ic, a. [Cf. F. volcanique, It. vulcanico.] 1. Of or pertaining to a volcano or volcanoes; as, volcanic heat. [1913 Webster]

2. Produced by a volcano, or, more generally, by igneous agencies; as, volcanic tufa. [1913 Webster]

3. Changed or affected by the heat of a volcano. [1913 Webster]

{Volcanic bomb}, a mass ejected from a volcano, often of molten lava having a rounded form.

{Volcanic cone}, a hill, conical in form, built up of cinders, tufa, or lava, during volcanic eruptions.

{Volcanic foci}, the subterranean centers of volcanic action; the points beneath volcanoes where the causes producing volcanic phenomena are most active.

{Volcanic glass}, the vitreous form of lava, produced by sudden cooling; obsidian. See {Obsidian}.

{Volcanic mud}, fetid, sulphurous mud discharged by a volcano.

{Volcanic rocks}, rocks which have been produced from the discharges of volcanic matter, as the various kinds of basalt, trachyte, scoria, obsidian, etc., whether compact, scoriaceous, or vitreous. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • volcanic — volcanically, adv. volcanicity /vol keuh nis i tee/, n. /vol kan ik/, adj. 1. of or pertaining to a volcano: a volcanic eruption. 2. discharged from or produced by volcanoes: volcanic mud. 3. characterized by the presence of volcanoes: a volcanic …   Universalium

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  • volcanic — [[t]vɒlkæ̱nɪk[/t]] ADJ: usu ADJ n Volcanic means coming from or created by volcanoes. Over 200 people have been killed by volcanic eruptions... Mount Unzen has been spewing out volcanic ash, gas, and rock today... St Vincent is a lush, volcanic… …   English dictionary

  • volcanic — UK [vɒlˈkænɪk] / US [vɑlˈkænɪk] adjective 1) coming from or connected with a volcano a layer of volcanic ash volcanic activity 2) literary a volcanic feeling is very strong, sudden, and uncontrolled He had a volcanic temper …   English dictionary

  • volcanic — I. adjective Date: 1774 1. a. of, relating to, or produced by a volcano b. characterized by volcanoes < a volcanic range > c. made of materials from volcanoes 2. explosively violent ; volatile < volcanic emotions > • …   New Collegiate Dictionary

  • volcanic —   Pele, a ā pele.     Volcanic flow, lua i pele, ā pele.     Volcanic ejecta, pōhāhā.     Volcanic haze, noeuahi …   English-Hawaiian dictionary

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