PXR (disambiguation) PXR could refer to: Pregnane X receptor, a protein Pixar Image Computer (an image file format .pxr) Pony Express Record, an album by group Shudder to Think IATA code for Surin Airport in Thailand See also[edit] Pxr sRNA, a regulatory RNA PXR5, ninth studio album by Hawkwind Topics referred to by the same term This disambiguation page lists articles associated with the title PXR.If an internal link led you here, you may wish to change the link to point directly to the intended article.