Source : WordNet®

struma
     n 1: 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},
           {thyromegaly}]
     2: a form of tuberculosis characterized by swellings of the
        lymphatic glands [syn: {scrofula}, {king's evil}]
     [also: {strumae} (pl)]

strumae
     See {struma}