any aggressive partly arboreal tropical African venomous elapid snake of the genus Dendroaspis, esp D. angusticeps (green and black mambas)
Word origin
from Zulu im-amba
mamba in American English
(ˈmɑmbə)
noun
any of a genus (Dendroaspis) of extremely poisonous, elapine, African tree snakes similar to the cobras but not hooded; esp., a long, green E African snake (D. angusticeps)