Sorry, no, thats an end link. I will add some illustration to my picture to make it clearer. But basically at the end of the lower control arm, there is a bolt that swivels and has a boot around it (I guess its like a ball joint, maybe thats what its called). The bolt and the boot (the ball joint) has separated from the control arm. Both the lower and upper control arms have this. It is what connects the control arms to the wheel. These allow the wheel to remain straight/level when the control arms are moving up and down with the suspension.
See my reposted picture with illustration.