— eruptively , adv. — eruptivity, eruptiveness , n.
/i rup"tiv/ , adj.
1. bursting forth, or tending to burst forth.
2. pertaining to or of the nature of an eruption.
3. Geol. noting a rock formed by the eruption of molten material.
4. Pathol. causing or accompanied by an eruption or rash.
n.
5. Geol. an eruptive rock.
[ 1640-50; éruptif. See ERUPT, -IVE ]