What does boomslang mean?
The boomslang is a large, venomous snake native to sub-Saharan Africa, belonging to the family Colubridae. Its name comes from Afrikaans — boom meaning 'tree' and slang meaning 'snake' — reflecting its strongly arboreal lifestyle. Boomslangs are notable for their exceptionally large eyes, keeled scales, and colouration that ranges from bright green in males to brown or olive in females, providing excellent camouflage among foliage. Although generally shy and non-aggressive toward humans, the boomslang possesses a potent haemotoxic venom delivered through rear-facing fangs, making it one of the few colubrid snakes considered genuinely dangerous to people. Bites are rare but medically serious, sometimes producing delayed internal bleeding. The word appears chiefly in scientific, zoological, and nature-writing contexts rather than everyday conversation.
nounA large, venomous colubrid snake (Dispholidus typus) native to sub-Saharan Africa, typically arboreal and greenish in colour. Its name derives from Afrikaans, meaning literally 'tree snake'.
- A large, venomous, predominantly arboreal colubrid snake (Dispholidus typus) found in sub-Saharan Africa, known for its large eyes, keeled scales, and potent haemotoxic venom.
"The hiker froze as a boomslang slid silently along the branch just above her head."
"A bright green boomslang coiled among the leaves was nearly invisible until it moved."
"Karl Schmidt's fatal 1957 boomslang bite led to important research on the snake's haemotoxic venom."
Standard English plural, formed by adding -s. Used when referring to multiple individuals of the species.
"Male boomslangs are typically bright green, while females tend to be brown or olive."
The boomslang's venom is so slow-acting that victims can feel fine for hours — which once killed a famed herpetologist who waited too long to seek treatment.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of boomslang
The word boomslang entered English from Afrikaans, itself derived from Dutch elements: boom ('tree') and slang ('snake'). The compound reflects the animal's characteristic tree-dwelling habits. It has been used in English-language zoological writing since at least the nineteenth century, when European naturalists began documenting southern African fauna. The Dutch root boom also gives us related words such as 'boulevard' (ultimately from Middle Dutch bolwerc via French boulevard), though this connection is distant rather than direct.
Related word forms
How boomslang is actually used
The word is used almost exclusively in herpetology, natural history writing, and wildlife journalism. It refers to one specific species, so it is always singular in reference unless discussing multiple individuals. The pronunciation varies between /ˈbuːm.slæŋ/ and the more Afrikaans-influenced /ˈbɔːm.slɑːŋ/, but the anglicized form is most common in English media.
Easily confused with boomslang
Slang is informal language or vocabulary, while a boomslang is an African tree-dwelling venomous snake; the two share only the Afrikaans element 'slang', meaning 'snake'.