Douglas Harper's Etymology Dictionary
Latin, literally "for the time (being)." Abbreviated form pro tem is attested by 1828.
WordNet
Wikipedia
Pro tempore (, or ), abbreviated pro tem or p.t., is a Latin phrase which best translates to "for the time being" in English. This phrase is often used to describe a person who acts as a locum tenens (placeholder) in the absence of a superior, such as the President pro tempore of the United States Senate, who acts in place of the President of the United States Senate, the Vice President of the United States.
Legislative bodies can have one or more pro tempore for the presiding officer. These positions ostensibly go to legislators experienced in floor debate who are familiar with the content and application of relevant rules and precedents and who have a reputation for fairness among their colleagues.
Pro tempore is a Croatian academic journal. It covers topics in Croatian and world history, and historiography, publishing a selection of articles, interviews, essays, in memoriams and book reviews. Since 2008 each issue has dealt with a specific topic in history, such as the early modern period, cultural history, gender history, business history and the Annales School. Also, since 2009 many international scholars have published their contributions. The historical journal, founded in 2004 by students, is published by ISHA-Zagreb (the Zagreb section of the International Students of History Association) at the Faculty of Humanities and Social Sciences, and its current editor in chief is Tomislav Branđolica. The journal is published once or twice a year in Croatian, with some articles in English. Since 2010, the editorial board consists of: Tomislav Branđolica (chief editor), Kristina Frančina, Marta Fiolić, Marko Lovrić, Valentina Nedeljko, Porin Šćukanec Rezniček, Nikola Seiwerth, Filip Šimetin Šegvić and Nikolina Šimetin Šegvić.
In 2010, the journal organized a round table (Annales in Perspective: Designs and Accomplishments) on the 80th anniversary of the founding of the Annales d’histoire économique et sociale with André Burguière as the keynote speaker. As of 2010 the editorial board is organizing movie nights dedicated to films made in collaboration with notable historians.
Usage examples of "pro tempore".
Although Dilman, as President pro tempore of the Senate, had been wielding the gavel since the Vice-President’.
He was simply greeted by the president pro tempore of the Senate, John Langdon of New Hampshire, and conducted to his chair at the head of the chamber.
Atchison was president pro tempore of the Senate then, and under the law in force at the time the succession would have devolved upon him, but he wasn't sworn in, he didn't do anything presidential (I believe he took a nap), and nobody to this day is really sure if he was president or not.
He turned to shake the hand of the Speaker of the House, the President Pro Tempore of the Senate, and his own Vice President, Roger Durling.
Under the Twenty-fifth Amendment, the Vice President and a majority of the Cabinet may together, in writing, communicate to the President pro tempore of the Senate and the Speaker of the House of Representatives their view that the President is no longer able to discharge the powers and duties of his office.
Byrd, the 83-year-old West Virginia Democrat president pro tempore of the Sen.
Plus the Speaker of the House, president pro tempore of the Senate, Secretary of State, and so on.
In fact, who in the hell, on that day they routinely caucused and voted, even knew that the President pro tempore of the Senate was the fourth in line?
Ammianus very justly remarks, Coactus dissimulare pro tempore ira sufflabatur interna.
You are hereby requested and required to repair immediately on board of His Majesty's ship Renown now lying in Port Royal bay and to take command pro tempore of the aforesaid ship Renown.
Speaking for the Trustees and for the Chairman, this is Arabelle Foote-Hedrick, Chairwoman Pro Tempore of the Howard Families.