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physostigmine

American  
[fahy-soh-stig-meen, -min] / ˌfaɪ soʊˈstɪg min, -mɪn /

noun

Pharmacology.

  1. an alkaloid, C 1 5 H 2 1 N 3 O 2 , used in the treatment of Alzheimer's disease to raise the level of the neurotransmitter acetylcholine and also as a miotic in glaucoma.

physostigmine British  
/ ˌfaɪsəʊˈstɪɡmiːn, ˌfaɪsəʊˈstɪɡmɪn /

noun

  1. Also called: eserine.  an alkaloid found in the Calabar bean used esp in eye drops to reduce pressure inside the eyeball. Formula: C 15 H 21 N 3 O 2

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of physostigmine

1860–65; < New Latin Physostigm ( a ) genus of plants yielding the alkaloid ( physo-, stigma ) + -ine 2

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.