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intr.v. in·ter·vened, in·ter·ven·ing, in·ter·venes
a. To involve oneself in a situation so as to alter or hinder an action or development: "Every gardener faces choices about how and how much to intervene in nature's processes" (Dora Galitzki).
b. To interfere, usually through force or threat of force, in the affairs of another nation.
c. Law To enter into a lawsuit as a third party to assert a claim against one or both of the existing parties.
2. To come, appear, or lie between two things: You can't see the lake from there because the house intervenes.
3. To come or occur between two periods or points of time: A year intervened between the two dynasties.
4. To occur as an extraneous or unplanned circumstance: He would have his degree by now if his laziness hadn't intervened.

[Latin intervenīre : inter-, inter- + venīre, to come; see gwā- in Indo-European roots.]

in′ter·ve′nor, in′ter·ven′er n.
in′ter·ven′tion·al adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.intervenor - (law) a party who interposes in a pending proceeding
law, jurisprudence - the collection of rules imposed by authority; "civilization presupposes respect for the law"; "the great problem for jurisprudence to allow freedom while enforcing order"
party - a person involved in legal proceedings; "the party of the first part"
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References in periodicals archive ?
Yet, a "conservative" government is an intervenor against free speech.
The bill provides a new review procedure for non-major power plants and re-powering projects with a net generating output of 50-80 megawatts (MW), including ample opportunities for public comment, intervenor funding, a public statement hearing and evidentiary hearings.
Manitoba, Ontario, Saskatchewan, and the Yukon will request intervenor status before the Court of Appeal.
Michigan's Integrated Program: A Mutual Effort by a VR Agency and Community Mental Health Agencies Using the Intervenor Concept
SEED Coalition was the lead intervenor opposing the Comanche Peak reactors, with Robert Eye as counsel.
Insurance Commissioner Dave Jones announced that a new Public Advisor has been appointed in order to assist members of the public and consumer groups with the Proposition 103 intervenor process.
Three First Nations from Alberta now have intervenor status in a B.
The Child Welfare League of Canada was an intervenor in the case.
Among other reactions to the June 10 court ruling was that of the EFC (Evangelical Fellowship of Canada), an intervenor in Halpern et al.
The only intervenor that spoke against the creation of APTN was the Canadian Cable Television Association, but a spokesperson for the Aboriginal Network said the CRTC downplayed the opposition remarks.
Because the province provides funding for groups which are granted intervenor status, Dunlop could find his corporate coffers battling the government's treasury.
Although the AMFA filed the necessary documents electronically with the NMB on Tuesday afternoon and delivered original documents Wednesday, officials at the NMB applied a technical rule effectively stripping away the right of any union to obtain intervenor status in the representation election.