There are two ride-hailing apps that dominate the scene: Uber and Lyft. Both have been around for the last several years, with Uber starting around 2009 and Lyft launching in 2012. Both have apps for Android and iOS, while only Uber has an app for Windows Phone as well.
Medicine/Medical. the preventing of disease. the prevention of a specific disease, as by studying the biological behavior, transmission, etc., of its causative agent and applying a series of measures against it. prophylactic treatment, as the cleaning of the teeth by a dentist or dental hygienist.
Â« View other Q&A's. Prophylactic mastectomy is the bilateral, surgical removal of both breasts as a cancer prevention effort. It is a fairly radical operation sometimes recommended for women who have tested positive for the BRCA1 or BRCA2 gene mutation, Dr. Citrin explains.