biogeography Syllabification: (bi·o·ge·og·ra·phy)Pronunciation: /ˌbīōjēˈägrəfē/Definition of biogeography noun the branch of biology that deals with the geographical distribution of plants and animals. Derivatives biogeographerPronunciation: /-fər/ noun biogeographicPronunciation: /-ˌjēəˈgrafik/ adjective biogeographicalPronunciation: /-ˌjēəˈgrafikəl/ adjective biogeographically adverb biogeography in other Oxford dictionaries Definition of biogeography in the British & World English dictionary