 eruptive |
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| 1. | [ adjective ] (geology) igneous rock that has solidified beneath the earth's surface; granite or diorite or gabbro | |
| Synonyms: | plutonic irruptive | |
| Related terms: | intrusive | |
| 2. | [ adjective ] (geology) igneous rock produced by eruption and solidified on or near the earth's surface; rhyolite or andesite or basalt | |
| Synonyms: | volcanic | |
| Examples: | "volcanic rock includes the volcanic glass obsidian" |
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| Related terms: | extrusive | |
| 3. | [ adjective ] erupting or tending to erupt | |
| Synonyms: | erupting | |
| Examples: | "a geyser is an intermittently eruptive hot spring" "people fled from the erupting volcano" |
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| Related terms: | active | |
| Similar spelling: |
erupt eruption erupting |
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