INTRUSION

Definition

1. noun any entry into an area not previously occupied. — synonyms: invasion, encroachment
2. noun entrance by force or without permission or welcome.
3. noun the forcing of molten rock into fissures or between strata of an earlier rock formation.
4. noun rock produced by an intrusive process.
5. noun entry to another's property without right or permission. — synonyms: trespass, encroachment, violation, usurpation