Revenue passenger miles. Revenue passenger miles (or RPM) measures demand for air transport. Itâs calculated as the number of revenue passengers multiplied by the total distance traveled. Itâs also called airline âtraffic.â. An increase in RPM is positive for an airline company. It means that more passengers are using their service.
Definition. An armpit lump is a swelling or bump under the arm. A lump in the armpit can have many causes. These include swollen lymph nodes, infections, or cysts.
The blood vessels keep your underarms warm and the sweat glands ensure it is regularly damp. This causes your armpit to be an ideal location to develop itchy conditions. But, more importantly, itchy underarms are a potential indicator of bigger health problems like breast cancer, psoriasis, and cancer.