Definitions for: Eruptive

[adj] erupting or tending to erupt; "a geyser is an intermittently eruptive hot spring"; "people fled from the erupting volcano"
[adj] igneous rock that has solidified beneath the earth's surface; granite or diorite or gabbro
[adj] 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"

Webster (1913) Definition: E*rup"tive, a. [Cf. F. ['e]ruptif.]
1. Breaking out or bursting forth.

The sudden glance Appears far south eruptive through
the cloud. --Thomson.

2. (Med.) Attended with eruption or efflorescence, or
producing it; as, an eruptive fever.

3. (Geol.) Produced by eruption; as, eruptive rocks, such as
the igneous or volcanic.

E*rup"tive, n. (Geol.)
An eruptive rock.

Synonyms: active, erupting(a), extrusive, intrusive, irruptive, plutonic, volcanic

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