Definition of "estrone" [estrone]

• An estrogenic hormone, C18H22O2, used primarily in the treatment of estrogen deficiency. Also called theelin. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "As the amount of estradiol produced by the ovaries decreases as women approach menopause, the adrenal gland provides an important source of another type of estrogen called estrone."
• "Although our fat cells are able to help out and produce a weakened form of estrogen called estrone, we are no longer in the safe haven of hormonal protection and are at the mercy of a variety of body processes."
• "The effects of other forms of estrogen, such as estrone and 17"