es·tra·di·ol (ĕs'trə-dī'ôl', -ōl', -ŏl')
n.
An estrogenic hormone, C₁₈H₂₄O₂, produced by the ovaries and used in treating estrogen deficiency.

[estra-, estrogenic hormone (from ESTRUS) + DI-¹ + -OL¹.]

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The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.

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