contentious group

See: faction
References in periodicals archive ?
She will go through the various options available to formulators looking to replace this contentious group of preservatives.
I am well aware that this is a contentious group, with a complicated
Without doubt it's a contentious group of horses," Harty said.
Victorian Catholics, converts and otherwise, were a very contentious group, and Newman managed to offend both the liberal and the conservative parties in the church.