eserine

E1S1E1R1I1N1E1

noun

An alkaloid C₁₅H₂₁N₃O₂, originally extracted from the Calabar bean.

Similar
physostigmine
OriginFrench ésérine →
Scrabble 7
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Meanings

nouneserine (plural eserines)

plural eserines

  1. chemistryAn alkaloid C₁₅H₂₁N₃O₂, originally extracted from the Calabar bean.

    Thomas Fraser (1841–1920) isolated the alkaloid eserine and made the important discovery that another alkaloid, atropine, blocked some of eserine’s actions.

    1997, Roy Porter, The Greatest Benefit to Mankind, Folio Society, published 2016, page 323

    Synonyms: physostigmine

Synonyms & antonyms

nounAn alkaloid C₁₅H₂₁N₃O₂, originally extracted from the Calabar bean.

Similar
physostigmine

Origin

  1. Frenchésérine
  2. Englisheserine

From French ésérine, from éséré, from a West African name for the Calabar bean, + -ine.

More words from French

Full word history & related roots →
Cite this entry
APA

eserine. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/eserine

MLA

“eserine.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/eserine. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “eserine,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/eserine.

Source: eserine on Wiktionary, CC BY-SA 4.0.