Definition of "intrusion"

Sudden anger rose in him. “What I’m looking for,” he barked, “is to be left in peace.” His voice trembled with a rage far bigger than her intrusion merited, the rage which shocked him whenever it coursed through his nervous system, like a flood.

2001, Salman Rushdie, Fury: A Novel, London: Jonathan Cape, page 5

The threat of terrorism to the British lies in the overreaction to it of British governments. Each one in turn clicks up the ratchet of surveillance, intrusion and security. Each one diminishes liberty.

2012 December 14, Simon Jenkins, “We mustn't overreact to North Korea boys' toys”, in The Guardian Weekly‎, volume 188, number 2, page 23

This setting is slightly altered by modern intrusion.

1969, The National Register of Historic Places, 1969‎, Washington, D.C.: National Park Service, page 275

Although there are modern intrusions (a road and communications facilities on the summit), the mountain is important to the Kumeyaay community's belief system.

1997, Donna J. Seifert, Barbara J. Little, Beth L. Savage, John H., Jr. Sprinkle, “Defining boundaries for National Register properties”, in National Register Bulletin‎, Washington, D.C.: National Park Service, page 27

In 1844, objection was raised to the Furness Railway's Dalton & Barrow line, when it was revealed that the line would pass directly through Furness Abbey. A re-route was achieved, with the line skirting the abbey ruins instead - although many continued to see the intrusion as a travesty against antiquity and the scenic beauty of the site.

2022 January 12, Dr. Joseph Brennan, “Castles: ruined and redeemed by rail”, in RAIL, number 948, page 56

A current challenge in recent work on Spanish sound structure is to understand the conditions that determine vowel intrusion and the consequences vowel intrusion may have on Spanish phonology.

2009, Benjamin Schmeiser, edited by Marine Vigário, Sónia Frota, and M. João Freitas, Phonetics and Phonology: Interactions and Interrelations, page 181