During the meeting, an intrusive thought about my unfinished report made it hard to concentrate.

Geologists mapped a massive layered intrusion beneath the plateau, revealing a complex history of magmatic events.

Geologists conducted extensive surveys to map the mineral composition of the layered intrusions exposed along the cliff face.

The novel's unexpected popularity proved that an intrusion fantasy can make the mundane feel like a doorway to wonder.

Despite feeling ashamed, he couldn't stop entertaining intrusion fantasies that blurred the line between curiosity and harm.