| | Conditions & Treatments | Thyroid Disease Does thyromegaly have a singular or plural form? Thyromegaly is the medical term for an enlarged thyroid gland. It is a singular noun, as it refers to a single condition. Thyroid Disease - Related Articles What are symptoms of high thyroid? Why thyroid tablets are taken in early morning? What Does TSH Mean for the Thyroid? High Basal Temperature & Thyroid Disease What Are the Symptoms of a Bad Thyroid? Signs and Symptoms of Thyroid Gland Disorders Are the parathyroid glands posterior to hypothalamus?