The following is a list of Royal Navy ship names by name in alphabetical order, both past and present. Many of the names have been re-used over the years and thus represent different ships.
(Note that this list still lacks many important ships.)
... urethral syndrome[?]
Passage of kidney stones through the urethra can be painful and subsequently it can lead to urethral strictures[?]
Endoscopy of the bladder via ...