Definition of Portosan in English:

Portosan

noun

US
  • A small prefabricated unit containing a toilet, designed for easy transportation and temporary installation, especially outdoors, as on a work site or at an open-air public event. [A trademark in the United States.]

Origin

1960s; earliest use found in American Speech. From Porto- (alteration of porta-; compare -o-) + san-.

Pronunciation

Portosan

/ˈpɔːtəsan/