bungarotoxin
noun
bun·ga·ro·tox·in
ˈbəŋ-gə-rō-ˌtäk-sən 
: a potent polypeptide neurotoxin that is obtained from krait venom and yields three electrophoretic fractions of which the one designated α is used especially to label acetylcholine receptors at neuromuscular junctions because it binds irreversibly to them and blocks their activity
—often used with one of the Greek prefixes α-, β-, or γ- to indicate the electrophoretic fractions
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“Bungarotoxin.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/bungarotoxin. Accessed 29 Nov. 2024.
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