In Yoga terms: Pranamasana.
There is a certain feeling that comes over me when I put my hands together in this manner. It must be why people have done it for thousands of years. It is strange the expressions we create with our bodies when it comes to certain things. I certainly feel a sense of calm, humility and meditative when I do this. I hold this pose (also while seated) while chanting. The alignment points are the same for standing pose just work to keep your prayer hands relaxed. Palms can be touching or just finger tips.