Humboldt Alexander von

Hum·boldt

 (hŭm′bōlt′, ho͝om′bôlt′), Baron (Friedrich Heinrich) Alexander von 1769-1859.
German scientist whose expeditions to Latin America (1799-1804) and Siberia (1829) greatly advanced the fields of ecology, geology, and meteorology.

Hum·boldt

(hŭm′bōlt′), Baron (Friedrich Heinrich) Alexander von 1769-1859.
German naturalist and writer. He undertook scientific expeditions in South America, Asia, and Europe and published works recording his observations. Humboldt made important contributions to the study of volcanoes, mountain ranges, ocean currents, and the relation of climate to plant growth.