English

Noun

tetrahydrogestrinone ‎(plural tetrahydrogestrinones)

1. (pharmacology) A banned anabolic steroid, C₂₁H₂₈O₂. Abbreviated to THG.
   • 2008, The Guardian, 13 Feb 2008:

     An outstanding junior prospect, setting the world junior 100m record in 1997, he appeared close to fulfilling that potential in 2002 when he won the 100m at the European championship, but in August 2003 he failed a drug test for the designer steroid tetrahydrogestrinone (THG).