An igneous rock that's forced, while molten, into cracks or between other levels of stone
In geology, a mass of igneous rock with forced its means between older wall space or strata, but has never achieved the top of earth. Intrusives occur as batholiths, laccoliths, intruded sheets, and dikes.
Apt to intrude; coming unbidden or without welcome; showing up undesirably: as, intrusive ideas or visitors.
complete or effected by intrusion; carried out by irregular or unauthorized entrance: since, intrusive interference.
Thrust in off regular destination or order; introduced from an extraneous resource; due to intrusion or unusual entry.
particularly, in geology applied to those igneous public which have forced their particular method between older rocks while having never ever achieved the area: compared with extrusive. See intrusive stones, under invasive.