a. | 1. | Of or pertaining to a volcano or volcanoes; | ||||||||||||||||||
2. | Produced by a volcano, or, more generally, by igneous agencies; | |||||||||||||||||||
3. | Changed or affected by the heat of a volcano.
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Adj. | 1. | volcanic - relating to or produced by or consisting of volcanoes; "volcanic steam"; "volcanic islands such as Iceland"; "a volcanic cone is a conical mountain or hill built up of material from volcanic eruptions" |
2. | volcanic - explosively unstable; "a volcanic temper" | |
3. | volcanic - igneous rock produced by eruption and solidified on or near the earth's surface; rhyolite or andesite or basalt; "volcanic rock includes the volcanic glass obsidian" Synonyms: eruptive |