irrupt

ir·rupt  (-rpt)

intr.v. ir·rupt·ed, ir·rupt·ing, ir·rupts

1. To break or burst in.

2. Ecology To increase rapidly and irregularly in number: In the absence of predators, the island's rodent population irrupted.

---

[Latin irrumpere, irrupt- : in-, in; see in-² + rumpere, to break; see reup- in Indo-European roots.]

---

ir·ruption n.

---

irrupt [ɪˈrʌpt]

vb (intr)

1. to enter forcibly or suddenly

2. (Life Sciences & Allied Applications / Biology) (of a plant or animal population) to enter a region suddenly and in very large numbers

3. (of a population) to increase suddenly and greatly

[from Latin irrumpere to rush into, invade, from rumpere to break, burst]

irruption  n

Thesaurus

Verb	1.	irrupt - enter uninvited; "They intruded on our dinner party"; "She irrupted into our sitting room" intrude break in - intrude on uninvited; "The nosy couple broke in on our conversation" come in, enter, get in, go in, go into, move into, get into - to come or go into; "the boat entered an area of shallow marshes" bother - intrude or enter uninvited; "Don't bother the professor while she is grading term papers" barge in, gate-crash, crash - enter uninvited; informal; "let's crash the party!" move in on - make intrusive advances towards
	2.	irrupt - erupt or intensify suddenly; "Unrest erupted in the country"; "Tempers flared at the meeting"; "The crowd irrupted into a burst of patriotism" erupt, flare up, break open, burst out, flare deepen, intensify - become more intense; "The debate intensified"; "His dislike for raw fish only deepened in Japan"
	3.	irrupt - increase rapidly and in an uncontrolled manner; "The population of India is exploding"; "The island's rodent population irrupted" explode increase - become bigger or greater in amount; "The amount of work increased"

Translations

irrupt

vi → eindringen, hereinstürzen; (water also) → hereinbrechen