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thiouracil

[thahy-oh-yoo r-uh-sil] /ˌθaɪ oʊˈyʊər ə sɪl/
noun, Pharmacology
1.
a white, slightly water-soluble, bitter, crystalline powder C 4 H 4 N 2 OS, used chiefly in treating hyperthyroidism by reducing the activity of the thyroid gland.
Origin
1940-1945
1940-45; thio- + uracil
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for thiouracil
  • thiouracil is a thiol-containing pyrimidine that is selectively incorporated into cells that synthesize melanin.
British Dictionary definitions for thiouracil

thiouracil

/ˌθaɪəʊˈjʊərəsɪl/
noun
1.
a white crystalline water-insoluble substance with an intensely bitter taste, used in medicine to treat hyperthyroidism; 2-thio-4-oxypyrimidine. Formula: C4H4N2OS
Word Origin
from thio- + uracil (uro-1 + ac(etic) + -il-ile)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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thiouracil in Medicine

thiouracil thi·o·u·ra·cil (thī'ō-yur'ə-sĭl')
n.
A white crystalline compound that interferes with the synthesis of thyroxine, used to reduce thyroid gland activity, especially in the treatment of hyperthyroidism.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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