The nature of a convergent boundary depends on the type of plates that are colliding. Where a dense oceanic plate collides with a less-dense continental plate, the oceanic plate is typically thrust underneath because of the greater buoyancy of the continental lithosphere, forming a subduction zone.
Medical Definition of URINAL. 1. : a vessel so constructed that it can be used for urination by a bedridden patient. 2. : a container worn by a person with urinary incontinence.
Urethra (Definition) The canal through which urine exits the bladder, discharging the urine externally. In men, it is about 20-cm long with a membranous, prostatic, bulbar, and pendulous segments ending at the glans penis; it gives passage to the spermatic fluid as well as urine.