struma vs goitre

struma and goitre both are nouns.

Word	Noun	Adjective	Verb	Adverb
struma	Yes	No	No	No
goitre	Yes	No	No	No

As nouns, struma and goitre are synonyms defined as:

struma and goitre: abnormally enlarged thyroid gland; can result from underproduction or overproduction of hormone or from a deficiency of iodine in the diet

Other synonyms of struma include goiter, thyromegaly.

struma (noun)	goitre (noun)
abnormally enlarged thyroid gland; can result from underproduction or overproduction of hormone or from a deficiency of iodine in the diet	abnormally enlarged thyroid gland; can result from underproduction or overproduction of hormone or from a deficiency of iodine in the diet
a form of tuberculosis characterized by swellings of the lymphatic glands