thio·​urea | \ ˌthī-ō-yu̇-ˈrē-ə How to pronounce thiourea (audio) \

Definition of thiourea

: a colorless crystalline bitter compound CS(NH2)2 analogous to and resembling urea that is used especially as a photographic and organic chemical reagent also : a substituted derivative of this compound

Examples of thiourea in a Sentence

Recent Examples on the Web Many plants, including broccoli, evolved to produce bitter-tasting chemicals like thiourea to avoid being eaten. Bill Sullivan, The Conversation, "Science of ‘Seinfeld’," 5 June 2020 One of those genes, TAS2R38, recognizes bitter chemicals like thioureas, which are plentiful in broccoli. Bill Sullivan, National Geographic, "Why we like what we like: A scientist’s surprising findings," 6 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'thiourea.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of thiourea

1884, in the meaning defined above

History and Etymology for thiourea

New Latin

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The first known use of thiourea was in 1884

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Cite this Entry

“Thiourea.” Dictionary, Merriam-Webster, Accessed 8 Mar. 2021.

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More Definitions for thiourea


thio·​urea | \ -yu̇-ˈrē-ə How to pronounce thiourea (audio) \

Medical Definition of thiourea

: a colorless bitter crystalline compound CS(NH2)2 analogous to and resembling urea that is used especially as a reagent and in medicine as an antithyroid drug

called also thiocarbamide

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