mamba
Synonym discussion
Sense: noun/1
Like mambas, cobras are venomous African snakes, but cobras spread their neck ribs to form a hood when threatened, while mambas do not. Vipers have thick, heavy bodies and triangular heads, whereas mambas are long and slender. Pythons are not venomous at all — they kill by squeezing their prey. A mamba's danger lies in its speed and its fast-acting nerve poison, which is far more lethal than a viper's venom. For example, a black mamba can kill an adult human in under an hour if untreated, while a python of the same size poses no venom threat at all.
Common collocations
Etymology
Mamba entered English in the 1860s from the Zulu word 'imamba', which is what Zulu speakers in southern Africa called this snake. The word originally referred to the green mamba and later extended to the black mamba as well.