river dolphin

noun
Updated on: 22 Apr 2018

Definition of river dolphin

: any of various small, toothed whales (as of the families Platanistidae and Iniidae) that chiefly inhabit rivers of South America and Asia and have a rounded forehead and a snout elongated into a long beak

Recent Examples of river dolphin from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'river dolphin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of river dolphin

1870

in the meaning defined above

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