urethra-combining form of urethra (cf. urethro-), occurring in a few terms, as uˈrethragraph, -tome, ureˈthrameter(seequots.).1875Knight Dict.Mech. 2684/2 Urethratome,..a knife for dividing strictures of the urethra.1883G. Herschel in Lancet 2 June 943/2 The instrument which I have devised, and to which I propose to give the name of *urethragraph.Ibid., Every surgeon who habitually makes use of the *urethrameter.1885Brit.Med.Jrnl. 11 July 54/2 Having found out the number, situations, and sizes of the contractions [of the urethra]..by the urethrameter.