Meanings
- uncountableA beta blocker used in the treatment of high blood pressure.
Origin
Probably from (cyclo)pen(tane) + (tertiary) but(yl) + -olol (“β-adrenoceptor antagonist”).
Full word history & related roots →Cite this entry
penbutolol. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/penbutolol
“penbutolol.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/penbutolol. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “penbutolol,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/penbutolol.
Source: penbutolol on Wiktionary, CC BY-SA 4.0.