bufadienolide

[ byoo-fuh-dahy-en-l-ahyd ]

/ ˌbyu fə daɪˈɛn lˌaɪd /

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noun Biochemistry.

any of a family of steroid lactones, occurring in toad venom and squill, that possess cardiac-stimulating and antitumor activity.

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Origin of bufadienolide

1965–70; from bufa-20, 22-dienolide a chemical component of such lactones; compare Latin būfō toad