1. To thrust or force (something) in or upon; especially, to force (one's self) in without leave or welcome; as, to intrude one's presence into a conference; to intrude one's opinions upon another.
2. To enter by force; to invade. Why should the worm intrude the maiden bud? (Shak)
3. (Science: geology) The cause to enter or force a way, as into the crevices of rocks.
Synonym: to obtrude, encroach, infringe, intrench, trespass. See Obtrude.
Origin: Intruded; Intruding.