Eruptive

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Eruptive

1. Breaking out or bursting forth. The sudden glance Appears far south eruptive through the cloud. (Thomson)

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

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

Origin: cf. F. Eruptif.

(Science: geology) An eruptive rock.