phenylthiocarbamide
(fĕnˌəl-thīˌō-kärˈbə-mīdˌ, -kär-bămˈīd, fēˌnəl-)
noun Abbr. PTC A crystalline compound, C6H5NHCSNH2, that tastes intensely bitter to people with a specific dominant gene and is used to test for the presence of the gene. Also called phenylthiourea.
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