[ ur-got-uh-meen, -min ]

  1. a crystalline, water-soluble polypeptide, C33H35N5O5, obtained from ergot, used to stimulate uterine contractions during labor and in the treatment of migraine.

Origin of ergotamine

First recorded in 1920–25; ergot + -amine

Words Nearby ergotamine Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Scientific definitions for ergotamine


[ ûr-gŏtə-mēn′, -mĭn ]

  1. A crystalline alkaloid derived from ergot that induces vasoconstriction and is used especially in the treatment of migraine headaches. Chemical formula: C33H35N5O5.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.