E*rup"tive (?), a. [Cf. F. 'eruptif.]
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.
© Webster 1913.
E*rup"tive, n. Geol.
An eruptive rock.
© Webster 1913.