The forcible inclusion or entry of an external group or individual; the act of intruding. / (geology) Magma forced into other rock formations; the rock formed when such magma solidifies.

plural of intrusion

Tending to intrude; doing that which is not welcome; interrupting or disturbing; entering without permission or welcome.

(geology) An igneous rock that is forced, while molten, into cracks or between other layers of rock

In an intrusive manner; by intrusion.

The quality of being intrusive.

(botany) Pushed or projecting inward.

plural of intrusive

(geology) a large body of igneous rock within which distinct stratification continues over many miles

plural of layered intrusion