proboscideanPronunciation: /ˌprɒbəˈsɪdɪən/ (also proboscidian) ZoologyDefinition of proboscidean noun a mammal of the order Proboscidea, which comprises the elephants and their extinct relatives. adjective relating to or denoting proboscideans. proboscidean in other Oxford dictionaries Definition of proboscidean in the US English dictionary
