v. in·trud·ed, in·trud·ing, in·trudes
1. To put or force in inappropriately, especially without invitation, fitness, or permission: intruded opinion into a factual report.
2. Geology To thrust (molten rock) into preexisting rock.
To come in rudely or inappropriately; enter as an improper or unwanted element: "Unpleasant realities have intruded on [his] presidential dreams" (Alexander Stille).
[Middle English intruden, from Latin intrūdere, intrūs-, to thrust in : in-, in; see IN-2 + trūdere, to thrust; see treud- in the Appendix of Indo-European roots.]
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