(topology, of a topological space) Having its fundamental group a singleton.

(topology, of a topological space) Having a singleton as its fundamental group.

(graph theory) Of a directed graph, such that for every pair of vertices u and v there is a path from u to v and a path from v to u.

(topology and graph theory) A connected subset that is, moreover, maximal with respect to being connected.

plural of connecting tubule

(mathematics) A graph in which there is a route of edges and nodes connecting any two nodes.

plural of connected component

plural of connective tissue

plural of connecting rod

(of a topological space) Such that every pair of points in the space comprises the boundary of some arc embedded in the space.