|Humboldt (ˈhʌmbəʊlt, German ˈhʊmbɔlt)|
|1.||Baron (Friedrich Heinrich) Alexander von (alɛˈksandər fɔn). 1769--1859, German scientist, who made important scientific explorations in Central and South America (1799--1804). In Kosmos (1845--62), he provided a comprehensive description of the physical universe|
|2.||his brother, Baron (Karl) Wilhelm von (ˈvɪlhɛlm fɔn). 1767--1835, German philologist and educational reformer|
|Humboldt (hŭm'bōlt', hm'bôlt') Pronunciation Key
German naturalist and writer who explored South America, Cuba, and Mexico (1799-1804) and recorded a wide range of species, particularly plants, and attempted to explain their geographic distribution with respect to their environment. His work laid the foundation the science of ecology.