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from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An estrogenic hormone, C18H24O3, found in the urine during pregnancy. Also called theelol.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A steroid hormone produced mostly during pregnancy

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a naturally occurring estrogenic hormone; a synthetic form is used to treat estrogen deficiency


es(trus) + tri- + -ol1.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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