Demethylated Form of Thymine
This page is the CodyCross answer for the clue below from Architectural Styles, Group 1180, Puzzle 2 (Turning Torso).
Question is: Demethylated Form of Thymine
and the answer is: URACIL
Word Meaning:
URACIL — (organic chemistry) One of the bases of RNA, pairing with adenine.
Definitions from Wiktionary.