XR

X Ray (Medical » Physiology)

** eXchange Rate (Business » International Business)

* Extremely Rare (Miscellaneous » Food)

* Extremely Rare (Medical » Veterinary)

* Extremely Rare (Medical » Physiology)

* Extremely Rare (Medical » Oncology)

* eXact Real (Computing » Assembly)

* eXact Real (Business » Firms)

* Xtreme Racing (Community » Sports)

* Xtreme Revolution (Community » Sports)

* X-ray Reflectivity (Academic & Science » Electronics)

* Xavier Review (Community » Media)

* Xavier Review magazine (Academic & Science » Universities)