[fen-l-thahy-oh-yoo-ree-uh, -yoo r-ee-uh, -feen-]

noun Biochemistry.

a crystalline, slightly water-soluble solid, C6H5NHCSNH2, that is either tasteless or bitter, depending upon the heredity of the taster, and is used in medical genetics and as a diagnostic.

Nearby words

  1. phenylmethylcarbinyl acetate,
  2. phenylpropanolamine,
  3. phenylpropyl acetate,
  4. phenylpyruvic oligophrenia,
  5. phenylthiocarbamide,
  6. phenytoin,
  7. pheo-,
  8. pheochrome,
  9. pheochromocyte,
  10. pheochromocytoma

Origin of phenylthiourea

First recorded in 1895–1900; phenyl + thiourea

Also called phen·yl·thi·o·car·ba·mide [fen-l-thahy-oh-kahr-buh-mahyd, -mid, feen-] /ˌfɛn lˌθaɪ oʊˈkɑr bəˌmaɪd, -mɪd, ˌfin-/. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Science definitions for phenylthiocarbamide


[fĕn′əl-thī′ō-kärbə-mīd′, -kär-bămīd, fē′nəl-]

A crystalline compound that tastes somewhat or intensely bitter to people with a specific dominant gene and is used to test for the presence of the gene. Also called phenylthiourea. Chemical formula: C6H5NHCSNH2.


[fĕn′əl-thī′ō-yu-rēə, fē′nəl-]

See phenylthiocarbamide.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.