| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| estriol |
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| SYLLABICATION: | es·tri·ol |
| PRONUNCIATION: | s tr -ôl , - l , - l , -str - |
| NOUN: | An estrogenic hormone, C18H24O3, found in the urine during pregnancy. Also called theelol. | | ETYMOLOGY: | es(trus) + tri + ol1.
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| The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved. |
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