Wiktionary
fundamental groups
n. (plural of fundamental group English)
Usage examples of "fundamental groups".
But then New York, as far back as the mind of man could travel, had been divided into the two great fundamental groups of the Mingotts and Mansons and all their clan, who cared about eating and clothes and money, and the Archer-Newland- van-der-Luyden tribe, who were devoted to travel, horticulture and the best fiction, and looked down on the grosser forms of pleasure.