noun 1. Carlos Juan /ˈkɑrloʊs wɑn/ [kahr-lohs wahn] Show IPA , 1833–1915,
U.S. physician, born in Cuba: first to suggest mosquito as carrier of yellow fever.
a river in N British Columbia, Canada, flowing SE to join the Parsnip River in forming the peace
River. 250 miles (402 km) long.