intrusion

From Middle English intrusioun, from Old French intrusion, from Medieval Latin intrūsiō, from intrūdō, from Latin in- + trūdō.

• IPA^(key): /ɪnˈtɹuːʒən/

• Audio (US):

  (file)

• Rhymes: -uːʒən

intrusion (countable and uncountable, plural intrusions)

1. The forcible inclusion or entry of an external group or individual; the act of intruding.

   She viewed sales calls as an unwelcome intrusion.

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

     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.

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

     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.

2. (geology) Magma forced into other rock formations; the rock formed when such magma solidifies.
3. A structure that lies within a historic district but is nonhistoric and irrelevant to the district.
   • 1969, The National Register of Historic Places, 1969‎, Washington, D.C.: National Park Service, page 275:

     This setting is slightly altered by modern intrusion.

   • 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:

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

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

     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.

4. (phonology) The insertion of a phoneme into the pronunciation of a word despite its absence from the spelling. (e.g. intrusive r)
   • 2009, Benjamin Schmeiser, edited by Marine Vigário, Sónia Frota, and M. João Freitas, Phonetics and Phonology: Interactions and Interrelations, →ISBN, page 181:

     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.

• “intrusion”, in The Century Dictionary , New York, N.Y.: The Century Co., 1911, →OCLC.
• “intrusion”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

French Wikipedia has an article on:

intrusion

Wikipedia ^fr

intrusion f (plural intrusions)

1. intrusion

• “intrusion”, in Trésor de la langue française informatisé , 2012.