Definitions

1. noun

a swelling in the neck caused by the thyroid gland being enlarged, often due to a lack of iodine in the diet

“The doctor ordered a blood test to check for iodine deficiency, which could cause her to develop a goiter.”

2. verb

to cause or develop a swelling in the neck, especially as a result of an iodine deficiency

“The polluted water supply was accused of causing goiter in the local population.”