Definition of phenylthiocarbamide
: a crystalline compound C7H8N2S that is extremely bitter or tasteless depending on the presence or absence of a single dominant gene in the taster
— called also phenylthiourea, PTC
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Merriam-Webster unabridged
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Time Traveler for phenylthiocarbamide
The first known use of phenylthiocarbamide was in 1889
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