Crossword clues for thyromegaly thyromegaly Abnormally enlarged thyroid gland Can result from under-production or over-production of hormone or from a deficiency of iodine in the diet WordNet thyromegaly n. abnormally enlarged thyroid gland; can result from under-production or over-production of hormone or from a deficiency of iodine in the diet [syn: goiter, goitre, struma]