Definition of thiourea in English:



mass nounChemistry
  • A synthetic crystalline compound used in photography and the manufacture of synthetic resins.

    The sulphur analogue of urea; chemical formula: SC(NH₂)₂

    • ‘All three have been shown to be active in a variety of yeast-based screens and there is some evidence that urethane and thiourea may induce free radicals in yeast cells.’
    • ‘Though the mutagenic activity of ethylene thiourea is well documented, very little is known about the deleterious effects of zineb.’
    • ‘IPI test results indicate the thiourea in the formula is the effective ingredient, converting image silver to stable silver sulfide.’
    • ‘Isothiocyanate reacts spontaneously with amino groups to form thiourea which interferes in the thyroid gland with the organification of iodide and the formation of thyroid hormone.’
    • ‘However, the presence of thiourea in the RB prevents effective protein alkylation by IAA.’