E*rup"tive (?), a. [Cf. F.
éruptif.] 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.