fascio

A bundle or sheaf.

The surfaces contain two fasci of curves — first, a fascio of elliptic curves, trajectories of the group, not necessarily a linear fascio; second, an elliptic fascio of curves of any genus; […]

An organised Italian political group, typically one resisting state government and advocating radical change; (specifically) any of a number of groups formed around the period of the First World War.

Crispi, who became prime minister for the second time at the end of 1893, saw the fasci as promoters of revolution.