From Longman Dictionary of Contemporary Englishmambamam‧ba /ˈmæmbə $ ˈmɑːmbə, ˈmæmbə/ noun [countable] HBAa poisonous African snake that is black or green
Examples from the Corpus
mamba• Slithering unseen and unheard through the branches, a green mamba is itself planning to make a kill.Origin mamba (1800-1900) Zulu im-amba 