define introduced

To introduce something is to bring something new to a situation. If your roommate never cleans up after herself, you might try to introduce some new housekeeping policies. Or, introduce yourself to someone who is looking for a new roommate.
Introduce has a number of related meanings. It’s often used when bringing people together for the first time, as when a talk show host introduces a guest to the audience, or when you introduce a new girlfriend or boyfriend to your parents. Introduce comes from the prefix intro-, meaning “into,” and the Latin word ducere, meaning “lead” — just as you may have to lead (or drag) your new sweetheart in to meet your parents.

Now, will one of you be kind enough to introduce himself and the class?
Would it be wise to invade this home just at this juncture and introduce boarders?

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Invasive species can harm both the natural resources in an ecosystem as well as threaten human use of these resources. An invasive species can be introduced to a new area via the ballast water of oceangoing ships, intentional and accidental releases of aquaculture species, aquarium specimens or bait, and other means.
VIDEO: What is an invasive species? Here’s an overview in under two minutes. Transcript

On Feb 3, 1999, Executive Order 13112 was signed by President Clinton establishing the National Invasive Species Council (NISC). The Executive Order requires that a Council of Departments dealing with invasive species be created. Executive Order 13312 revokes the preceding Executive Order 11987 of May 24, 1977.
See also: NISC Members for more information.

The group introduced a bill in the House on Thursday, hoping to thwart a city council vote this month recognizing same-sex marriages performed in other jurisdictions. Five states ” Connecticut, Iowa, Maine, Massachusetts and Vermont ” allow gay marriage.
More than 30 lawmakers have signed on as co-sponsors of the House bill, said Rep. Jim Jordan, R-Ohio. However, all but two are Republicans, and it will be a fight to get the bill approved in a Democratic-controlled Congress and signed by President Barack Obama.

References:

http://www.thesaurus.com/browse/introduce
http://www.parliament.uk/about/how/laws/bills/
http://oceanservice.noaa.gov/facts/invasive.html
http://www.invasivespeciesinfo.gov/executive-order-13112
http://www.dcvote.org/news/bill-define-marriage-dc-introduced-house
http://www.socialsciencespace.com/2010/09/11-tips-on-how-to-present-research-findings/