A group of people working together temporarily until some goal is achieved(noun)
WordNet. Princeton University. 2010.
Use "working party" in a sentence
"At last an area five feet square of the sail was fothered, lines were rove through the grommets, and the working party hurried forward to work the sail under the brig and drag it aft to the hole."
"When the Battalion was gone and the other spectators had gawped at the remains, a working party lowered the coffins into the graves."
"In ordinary conditions a working party of two or three hundred men from the Indefatigable would have made short work of getting in the cargo from the lighters, but now it had to be done by the longboat's complement of eighteen."