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.