intrusion

Meanings

1. 1
   noun

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

   She viewed sales calls as an unwelcome intrusion.

2. 2
   noun

   A structure that lies within a historic district but is nonhistoric and irrelevant to the district.

   This setting is slightly altered by modern intrusion.

3. 3
   noun

   The insertion of a phoneme into the pronunciation of a word despite its absence from the spelling. (e.g. intrusive r)

   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.

4. 4
   noun

   An involuntarily arising idea or memory that is nuisant and falsifies an accurate impression of the world.

   In general, intrusion errors tend to occur with greater frequency in individuals whose cognitive capacity is diminished relative to that of young adults. Poor readers, older participants, and neuropsychological patients exhibit more intrusion errors than controls.

5. 5
   noun

   entrance by force or without permission or welcome

6. 6
   noun

   entry to another's property without right or permission

7. 7
   noun

   any entry into an area not previously occupied

8. 8
   noun

   rock produced by an intrusive process

Etymology

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