goi·ter (goi'tər) n. A noncancerous enlargement of the thyroid gland, visible as a swelling at the front of the neck, that is often associated with iodine deficiency. Also called struma.
[French goitre, from Provençal goitron, from Vulgar Latin *guttūriō, guttūriōn-, throat, from Latin guttur.] goi'trous (-trəs) adj.