noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Any of a class of heterocycles based on 2-thioxo-1H-pyrimidin-4-one; the parent compound interferes with the synthesis of thyroxine and is used in the treatment of hyperthyroidism
2. 2
   depresses the function of the thyroid gland wordnet

Etymology

From thio- + uracil.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.