A connector which can absorb thermal expansion and contraction of a substrate, or positional deviation of the substrate, and which enables the male and female connectors thereof to be fitted to each other where the male and female connectors are inclined to each other. A male terminal of a male connector, and a female terminal of a female connector are slidable relative to each other when in contact with each other. The male terminal and the female terminal are rotatable relative to each other about a contact point when in contact with each other, and hence the male terminal and the female terminal can be attached and detached to and from each other at an arbitrary rotating position.